21405536

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 43953840

約数和(自身を除く): 22548304

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 101, 148, 179, 202, 296, 358, 404, 592, 716, 808, 1184, 1432, 1616, 2864, 3232, 3737, 5728, 6623, 7474, 13246, 14948, 18079, 26492, 29896, 36158, 52984, 59792, 72316, 105968, 119584, 144632, 211936, 289264, 578528, 668923, 1337846, 2675692, 5351384, 10702768, 21405536]

約数ペア:

[(1, 21405536), (2, 10702768), (4, 5351384), (8, 2675692), (16, 1337846), (32, 668923), (37, 578528), (74, 289264), (101, 211936), (148, 144632), (179, 119584), (202, 105968), (296, 72316), (358, 59792), (404, 52984), (592, 36158), (716, 29896), (808, 26492), (1184, 18079), (1432, 14948), (1616, 13246), (2864, 7474), (3232, 6623), (3737, 5728)]