19980585

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14323}}^1$

素因数の和:14365

約数の個数: 24

約数和(自身を含む): 35752704

約数和(自身を除く): 15772119

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14323, 42969, 71615, 128907, 214845, 444013, 644535, 1332039, 2220065, 3996117, 6660195, 19980585]

約数ペア:

[(1, 19980585), (3, 6660195), (5, 3996117), (9, 2220065), (15, 1332039), (31, 644535), (45, 444013), (93, 214845), (155, 128907), (279, 71615), (465, 42969), (1395, 14323)]