17720872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{170393}}^1$

素因数の和:170412

約数の個数: 16

約数和(自身を含む): 35782740

約数和(自身を除く): 18061868

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 170393, 340786, 681572, 1363144, 2215109, 4430218, 8860436, 17720872]

約数ペア:

[(1, 17720872), (2, 8860436), (4, 4430218), (8, 2215109), (13, 1363144), (26, 681572), (52, 340786), (104, 170393)]