21628545

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 36056064

約数和(自身を除く): 14427519

約数列:

[1, 3, 5, 15, 31, 93, 155, 193, 241, 465, 579, 723, 965, 1205, 2895, 3615, 5983, 7471, 17949, 22413, 29915, 37355, 46513, 89745, 112065, 139539, 232565, 697695, 1441903, 4325709, 7209515, 21628545]

約数ペア:

[(1, 21628545), (3, 7209515), (5, 4325709), (15, 1441903), (31, 697695), (93, 232565), (155, 139539), (193, 112065), (241, 89745), (465, 46513), (579, 37355), (723, 29915), (965, 22413), (1205, 17949), (2895, 7471), (3615, 5983)]