21442680

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 192

約数和(自身を含む): 81469440

約数和(自身を除く): 60026760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 67, 70, 72, 84, 90, 105, 120, 126, 127, 134, 140, 168, 180, 201, 210, 252, 254, 268, 280, 315, 335, 360, 381, 402, 420, 469, 504, 508, 536, 603, 630, 635, 670, 762, 804, 840, 889, 938, 1005, 1016, 1143, 1206, 1260, 1270, 1340, 1407, 1524, 1608, 1778, 1876, 1905, 2010, 2286, 2345, 2412, 2520, 2540, 2667, 2680, 2814, 3015, 3048, 3556, 3752, 3810, 4020, 4221, 4445, 4572, 4690, 4824, 5080, 5334, 5628, 5715, 6030, 7035, 7112, 7620, 8001, 8040, 8442, 8509, 8890, 9144, 9380, 10668, 11256, 11430, 12060, 13335, 14070, 15240, 16002, 16884, 17018, 17780, 18760, 21105, 21336, 22860, 24120, 25527, 26670, 28140, 32004, 33768, 34036, 35560, 40005, 42210, 42545, 45720, 51054, 53340, 56280, 59563, 64008, 68072, 76581, 80010, 84420, 85090, 102108, 106680, 119126, 127635, 153162, 160020, 168840, 170180, 178689, 204216, 238252, 255270, 297815, 306324, 320040, 340360, 357378, 382905, 476504, 510540, 536067, 595630, 612648, 714756, 765810, 893445, 1021080, 1072134, 1191260, 1429512, 1531620, 1786890, 2144268, 2382520, 2680335, 3063240, 3573780, 4288536, 5360670, 7147560, 10721340, 21442680]

約数ペア:

[(1, 21442680), (2, 10721340), (3, 7147560), (4, 5360670), (5, 4288536), (6, 3573780), (7, 3063240), (8, 2680335), (9, 2382520), (10, 2144268), (12, 1786890), (14, 1531620), (15, 1429512), (18, 1191260), (20, 1072134), (21, 1021080), (24, 893445), (28, 765810), (30, 714756), (35, 612648), (36, 595630), (40, 536067), (42, 510540), (45, 476504), (56, 382905), (60, 357378), (63, 340360), (67, 320040), (70, 306324), (72, 297815), (84, 255270), (90, 238252), (105, 204216), (120, 178689), (126, 170180), (127, 168840), (134, 160020), (140, 153162), (168, 127635), (180, 119126), (201, 106680), (210, 102108), (252, 85090), (254, 84420), (268, 80010), (280, 76581), (315, 68072), (335, 64008), (360, 59563), (381, 56280), (402, 53340), (420, 51054), (469, 45720), (504, 42545), (508, 42210), (536, 40005), (603, 35560), (630, 34036), (635, 33768), (670, 32004), (762, 28140), (804, 26670), (840, 25527), (889, 24120), (938, 22860), (1005, 21336), (1016, 21105), (1143, 18760), (1206, 17780), (1260, 17018), (1270, 16884), (1340, 16002), (1407, 15240), (1524, 14070), (1608, 13335), (1778, 12060), (1876, 11430), (1905, 11256), (2010, 10668), (2286, 9380), (2345, 9144), (2412, 8890), (2520, 8509), (2540, 8442), (2667, 8040), (2680, 8001), (2814, 7620), (3015, 7112), (3048, 7035), (3556, 6030), (3752, 5715), (3810, 5628), (4020, 5334), (4221, 5080), (4445, 4824), (4572, 4690)]