19494512

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71671}}^1$

素因数の和:71696

約数の個数: 20

約数和(自身を含む): 39992976

約数和(自身を除く): 20498464

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71671, 143342, 286684, 573368, 1146736, 1218407, 2436814, 4873628, 9747256, 19494512]

約数ペア:

[(1, 19494512), (2, 9747256), (4, 4873628), (8, 2436814), (16, 1218407), (17, 1146736), (34, 573368), (68, 286684), (136, 143342), (272, 71671)]