21502065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3557}}^1$

素因数の和:3609

約数の個数: 32

約数和(自身を含む): 38255616

約数和(自身を除く): 16753551

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 3557, 6045, 10671, 17785, 46241, 53355, 110267, 138723, 231205, 330801, 551335, 693615, 1433471, 1654005, 4300413, 7167355, 21502065]

約数ペア:

[(1, 21502065), (3, 7167355), (5, 4300413), (13, 1654005), (15, 1433471), (31, 693615), (39, 551335), (65, 330801), (93, 231205), (155, 138723), (195, 110267), (403, 53355), (465, 46241), (1209, 17785), (2015, 10671), (3557, 6045)]