19722886

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{3943}}^1$

素因数の和:4047

約数の個数: 16

約数和(自身を含む): 30810528

約数和(自身を除く): 11087642

約数列:

[1, 2, 41, 61, 82, 122, 2501, 3943, 5002, 7886, 161663, 240523, 323326, 481046, 9861443, 19722886]

約数ペア:

[(1, 19722886), (2, 9861443), (41, 481046), (61, 323326), (82, 240523), (122, 161663), (2501, 7886), (3943, 5002)]