21699240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{857}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 65482560

約数和(自身を除く): 43783320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 633, 844, 857, 1055, 1266, 1688, 1714, 2110, 2532, 2571, 3165, 3428, 4220, 4285, 5064, 5142, 6330, 6856, 8440, 8570, 10284, 12660, 12855, 17140, 20568, 25320, 25710, 34280, 51420, 102840, 180827, 361654, 542481, 723308, 904135, 1084962, 1446616, 1808270, 2169924, 2712405, 3616540, 4339848, 5424810, 7233080, 10849620, 21699240]

約数ペア:

[(1, 21699240), (2, 10849620), (3, 7233080), (4, 5424810), (5, 4339848), (6, 3616540), (8, 2712405), (10, 2169924), (12, 1808270), (15, 1446616), (20, 1084962), (24, 904135), (30, 723308), (40, 542481), (60, 361654), (120, 180827), (211, 102840), (422, 51420), (633, 34280), (844, 25710), (857, 25320), (1055, 20568), (1266, 17140), (1688, 12855), (1714, 12660), (2110, 10284), (2532, 8570), (2571, 8440), (3165, 6856), (3428, 6330), (4220, 5142), (4285, 5064)]