18878402

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:905

約数の個数: 16

約数和(自身を含む): 28938624

約数和(自身を除く): 10060222

約数列:

[1, 2, 61, 122, 271, 542, 571, 1142, 16531, 33062, 34831, 69662, 154741, 309482, 9439201, 18878402]

約数ペア:

[(1, 18878402), (2, 9439201), (61, 309482), (122, 154741), (271, 69662), (542, 34831), (571, 33062), (1142, 16531)]