21595560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:615

約数の個数: 128

約数和(自身を含む): 75755520

約数和(自身を除く): 54159960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 56, 60, 70, 84, 94, 105, 120, 140, 141, 168, 188, 210, 235, 280, 282, 329, 376, 420, 470, 547, 564, 658, 705, 840, 940, 987, 1094, 1128, 1316, 1410, 1641, 1645, 1880, 1974, 2188, 2632, 2735, 2820, 3282, 3290, 3829, 3948, 4376, 4935, 5470, 5640, 6564, 6580, 7658, 7896, 8205, 9870, 10940, 11487, 13128, 13160, 15316, 16410, 19145, 19740, 21880, 22974, 25709, 30632, 32820, 38290, 39480, 45948, 51418, 57435, 65640, 76580, 77127, 91896, 102836, 114870, 128545, 153160, 154254, 179963, 205672, 229740, 257090, 308508, 359926, 385635, 459480, 514180, 539889, 617016, 719852, 771270, 899815, 1028360, 1079778, 1439704, 1542540, 1799630, 2159556, 2699445, 3085080, 3599260, 4319112, 5398890, 7198520, 10797780, 21595560]

約数ペア:

[(1, 21595560), (2, 10797780), (3, 7198520), (4, 5398890), (5, 4319112), (6, 3599260), (7, 3085080), (8, 2699445), (10, 2159556), (12, 1799630), (14, 1542540), (15, 1439704), (20, 1079778), (21, 1028360), (24, 899815), (28, 771270), (30, 719852), (35, 617016), (40, 539889), (42, 514180), (47, 459480), (56, 385635), (60, 359926), (70, 308508), (84, 257090), (94, 229740), (105, 205672), (120, 179963), (140, 154254), (141, 153160), (168, 128545), (188, 114870), (210, 102836), (235, 91896), (280, 77127), (282, 76580), (329, 65640), (376, 57435), (420, 51418), (470, 45948), (547, 39480), (564, 38290), (658, 32820), (705, 30632), (840, 25709), (940, 22974), (987, 21880), (1094, 19740), (1128, 19145), (1316, 16410), (1410, 15316), (1641, 13160), (1645, 13128), (1880, 11487), (1974, 10940), (2188, 9870), (2632, 8205), (2735, 7896), (2820, 7658), (3282, 6580), (3290, 6564), (3829, 5640), (3948, 5470), (4376, 4935)]