1908995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 2544480

約数和(自身を除く): 635485

約数列:

[1, 5, 11, 55, 61, 305, 569, 671, 2845, 3355, 6259, 31295, 34709, 173545, 381799, 1908995]

約数ペア:

[(1, 1908995), (5, 381799), (11, 173545), (55, 34709), (61, 31295), (305, 6259), (569, 3355), (671, 2845)]