21947705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^2\times {\mathrm{97}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 29149512

約数和(自身を除く): 7201807

約数列:

[1, 5, 13, 59, 65, 97, 295, 485, 767, 1261, 3481, 3835, 5723, 6305, 17405, 28615, 45253, 74399, 226265, 337657, 371995, 1688285, 4389541, 21947705]

約数ペア:

[(1, 21947705), (5, 4389541), (13, 1688285), (59, 371995), (65, 337657), (97, 226265), (295, 74399), (485, 45253), (767, 28615), (1261, 17405), (3481, 6305), (3835, 5723)]