21260688

素因数分解:

$2^4\times 3^1\times {\mathrm{641}}^1\times {\mathrm{691}}^1$

素因数の和:1343

約数の個数: 40

約数和(自身を含む): 55088736

約数和(自身を除く): 33828048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 641, 691, 1282, 1382, 1923, 2073, 2564, 2764, 3846, 4146, 5128, 5528, 7692, 8292, 10256, 11056, 15384, 16584, 30768, 33168, 442931, 885862, 1328793, 1771724, 2657586, 3543448, 5315172, 7086896, 10630344, 21260688]

約数ペア:

[(1, 21260688), (2, 10630344), (3, 7086896), (4, 5315172), (6, 3543448), (8, 2657586), (12, 1771724), (16, 1328793), (24, 885862), (48, 442931), (641, 33168), (691, 30768), (1282, 16584), (1382, 15384), (1923, 11056), (2073, 10256), (2564, 8292), (2764, 7692), (3846, 5528), (4146, 5128)]