19722154

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1163}}^1$

素因数の和:1365

約数の個数: 16

約数和(自身を含む): 30310560

約数和(自身を除く): 10588406

約数列:

[1, 2, 61, 122, 139, 278, 1163, 2326, 8479, 16958, 70943, 141886, 161657, 323314, 9861077, 19722154]

約数ペア:

[(1, 19722154), (2, 9861077), (61, 323314), (122, 161657), (139, 141886), (278, 70943), (1163, 16958), (2326, 8479)]