21557910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65327}}^1$

素因数の和:65348

約数の個数: 32

約数和(自身を含む): 56443392

約数和(自身を除く): 34885482

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 65327, 130654, 195981, 326635, 391962, 653270, 718597, 979905, 1437194, 1959810, 2155791, 3592985, 4311582, 7185970, 10778955, 21557910]

約数ペア:

[(1, 21557910), (2, 10778955), (3, 7185970), (5, 4311582), (6, 3592985), (10, 2155791), (11, 1959810), (15, 1437194), (22, 979905), (30, 718597), (33, 653270), (55, 391962), (66, 326635), (110, 195981), (165, 130654), (330, 65327)]