21260472

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{487}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 56920320

約数和(自身を除く): 35659848

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 107, 136, 204, 214, 321, 408, 428, 487, 642, 856, 974, 1284, 1461, 1819, 1948, 2568, 2922, 3638, 3896, 5457, 5844, 7276, 8279, 10914, 11688, 14552, 16558, 21828, 24837, 33116, 43656, 49674, 52109, 66232, 99348, 104218, 156327, 198696, 208436, 312654, 416872, 625308, 885853, 1250616, 1771706, 2657559, 3543412, 5315118, 7086824, 10630236, 21260472]

約数ペア:

[(1, 21260472), (2, 10630236), (3, 7086824), (4, 5315118), (6, 3543412), (8, 2657559), (12, 1771706), (17, 1250616), (24, 885853), (34, 625308), (51, 416872), (68, 312654), (102, 208436), (107, 198696), (136, 156327), (204, 104218), (214, 99348), (321, 66232), (408, 52109), (428, 49674), (487, 43656), (642, 33116), (856, 24837), (974, 21828), (1284, 16558), (1461, 14552), (1819, 11688), (1948, 10914), (2568, 8279), (2922, 7276), (3638, 5844), (3896, 5457)]