17990486

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{617}}^1$

素因数の和:919

約数の個数: 16

約数和(自身を含む): 27587520

約数和(自身を除く): 9597034

約数列:

[1, 2, 61, 122, 239, 478, 617, 1234, 14579, 29158, 37637, 75274, 147463, 294926, 8995243, 17990486]

約数ペア:

[(1, 17990486), (2, 8995243), (61, 294926), (122, 147463), (239, 75274), (478, 37637), (617, 29158), (1234, 14579)]