21015555454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1\times {\mathrm{42473}}^1$

素因数の和:42972

約数の個数: 32

約数和(自身を含む): 34403940000

約数和(自身を除く): 13388384546

約数列:

[1, 2, 19, 29, 38, 58, 449, 551, 898, 1102, 8531, 13021, 17062, 26042, 42473, 84946, 247399, 494798, 806987, 1231717, 1613974, 2463434, 19070377, 23402623, 38140754, 46805246, 362337163, 553040933, 724674326, 1106081866, 10507777727, 21015555454]

約数ペア:

[(1, 21015555454), (2, 10507777727), (19, 1106081866), (29, 724674326), (38, 553040933), (58, 362337163), (449, 46805246), (551, 38140754), (898, 23402623), (1102, 19070377), (8531, 2463434), (13021, 1613974), (17062, 1231717), (26042, 806987), (42473, 494798), (84946, 247399)]