21259416

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^2\times {\mathrm{401}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 54438840

約数和(自身を除く): 33179424

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 188, 282, 376, 401, 564, 802, 1128, 1203, 1604, 2209, 2406, 3208, 4418, 4812, 6627, 8836, 9624, 13254, 17672, 18847, 26508, 37694, 53016, 56541, 75388, 113082, 150776, 226164, 452328, 885809, 1771618, 2657427, 3543236, 5314854, 7086472, 10629708, 21259416]

約数ペア:

[(1, 21259416), (2, 10629708), (3, 7086472), (4, 5314854), (6, 3543236), (8, 2657427), (12, 1771618), (24, 885809), (47, 452328), (94, 226164), (141, 150776), (188, 113082), (282, 75388), (376, 56541), (401, 53016), (564, 37694), (802, 26508), (1128, 18847), (1203, 17672), (1604, 13254), (2209, 9624), (2406, 8836), (3208, 6627), (4418, 4812)]