19894012

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{7907}}^1$

素因数の和:7965

約数の個数: 24

約数和(自身を含む): 37863504

約数和(自身を除く): 17969492

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 2516, 7907, 15814, 31628, 134419, 268838, 292559, 537676, 585118, 1170236, 4973503, 9947006, 19894012]

約数ペア:

[(1, 19894012), (2, 9947006), (4, 4973503), (17, 1170236), (34, 585118), (37, 537676), (68, 292559), (74, 268838), (148, 134419), (629, 31628), (1258, 15814), (2516, 7907)]