21639376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3323}}^1$

素因数の和:3379

約数の個数: 40

約数和(自身を含む): 46988064

約数和(自身を除く): 25348688

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3256, 3323, 6512, 6646, 13292, 26584, 36553, 53168, 73106, 122951, 146212, 245902, 292424, 491804, 584848, 983608, 1352461, 1967216, 2704922, 5409844, 10819688, 21639376]

約数ペア:

[(1, 21639376), (2, 10819688), (4, 5409844), (8, 2704922), (11, 1967216), (16, 1352461), (22, 983608), (37, 584848), (44, 491804), (74, 292424), (88, 245902), (148, 146212), (176, 122951), (296, 73106), (407, 53168), (592, 36553), (814, 26584), (1628, 13292), (3256, 6646), (3323, 6512)]