21398160

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:341

約数の個数: 160

約数和(自身を含む): 77709312

約数和(自身を除く): 56311152

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 271, 280, 282, 329, 336, 376, 420, 470, 542, 560, 564, 658, 705, 752, 813, 840, 940, 987, 1084, 1128, 1316, 1355, 1410, 1626, 1645, 1680, 1880, 1897, 1974, 2168, 2256, 2632, 2710, 2820, 3252, 3290, 3760, 3794, 3948, 4065, 4336, 4935, 5264, 5420, 5640, 5691, 6504, 6580, 7588, 7896, 8130, 9485, 9870, 10840, 11280, 11382, 12737, 13008, 13160, 15176, 15792, 16260, 18970, 19740, 21680, 22764, 25474, 26320, 28455, 30352, 32520, 37940, 38211, 39480, 45528, 50948, 56910, 63685, 65040, 75880, 76422, 78960, 89159, 91056, 101896, 113820, 127370, 151760, 152844, 178318, 191055, 203792, 227640, 254740, 267477, 305688, 356636, 382110, 445795, 455280, 509480, 534954, 611376, 713272, 764220, 891590, 1018960, 1069908, 1337385, 1426544, 1528440, 1783180, 2139816, 2674770, 3056880, 3566360, 4279632, 5349540, 7132720, 10699080, 21398160]

約数ペア:

[(1, 21398160), (2, 10699080), (3, 7132720), (4, 5349540), (5, 4279632), (6, 3566360), (7, 3056880), (8, 2674770), (10, 2139816), (12, 1783180), (14, 1528440), (15, 1426544), (16, 1337385), (20, 1069908), (21, 1018960), (24, 891590), (28, 764220), (30, 713272), (35, 611376), (40, 534954), (42, 509480), (47, 455280), (48, 445795), (56, 382110), (60, 356636), (70, 305688), (80, 267477), (84, 254740), (94, 227640), (105, 203792), (112, 191055), (120, 178318), (140, 152844), (141, 151760), (168, 127370), (188, 113820), (210, 101896), (235, 91056), (240, 89159), (271, 78960), (280, 76422), (282, 75880), (329, 65040), (336, 63685), (376, 56910), (420, 50948), (470, 45528), (542, 39480), (560, 38211), (564, 37940), (658, 32520), (705, 30352), (752, 28455), (813, 26320), (840, 25474), (940, 22764), (987, 21680), (1084, 19740), (1128, 18970), (1316, 16260), (1355, 15792), (1410, 15176), (1626, 13160), (1645, 13008), (1680, 12737), (1880, 11382), (1897, 11280), (1974, 10840), (2168, 9870), (2256, 9485), (2632, 8130), (2710, 7896), (2820, 7588), (3252, 6580), (3290, 6504), (3760, 5691), (3794, 5640), (3948, 5420), (4065, 5264), (4336, 4935)]