21931208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3457}}^1$

素因数の和:3537

約数の個数: 32

約数和(自身を含む): 45023160

約数和(自身を除く): 23091952

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3457, 6344, 6914, 13828, 27656, 44941, 89882, 179764, 210877, 359528, 421754, 843508, 1687016, 2741401, 5482802, 10965604, 21931208]

約数ペア:

[(1, 21931208), (2, 10965604), (4, 5482802), (8, 2741401), (13, 1687016), (26, 843508), (52, 421754), (61, 359528), (104, 210877), (122, 179764), (244, 89882), (488, 44941), (793, 27656), (1586, 13828), (3172, 6914), (3457, 6344)]