209012912

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{421397}}^1$

素因数の和:421436

約数の個数: 20

約数和(自身を含む): 418026816

約数和(自身を除く): 209013904

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 421397, 842794, 1685588, 3371176, 6742352, 13063307, 26126614, 52253228, 104506456, 209012912]

約数ペア:

[(1, 209012912), (2, 104506456), (4, 52253228), (8, 26126614), (16, 13063307), (31, 6742352), (62, 3371176), (124, 1685588), (248, 842794), (496, 421397)]