18990190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{6571}}^1$

素因数の和:6612

約数の個数: 24

約数和(自身を含む): 36316872

約数和(自身を除く): 17326682

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 6571, 13142, 32855, 65710, 111707, 223414, 558535, 1117070, 1899019, 3798038, 9495095, 18990190]

約数ペア:

[(1, 18990190), (2, 9495095), (5, 3798038), (10, 1899019), (17, 1117070), (34, 558535), (85, 223414), (170, 111707), (289, 65710), (578, 32855), (1445, 13142), (2890, 6571)]