18995528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{709}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 37956600

約数和(自身を除く): 18961072

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 197, 394, 709, 788, 1418, 1576, 2836, 3349, 5672, 6698, 12053, 13396, 24106, 26792, 48212, 96424, 139673, 279346, 558692, 1117384, 2374441, 4748882, 9497764, 18995528]

約数ペア:

[(1, 18995528), (2, 9497764), (4, 4748882), (8, 2374441), (17, 1117384), (34, 558692), (68, 279346), (136, 139673), (197, 96424), (394, 48212), (709, 26792), (788, 24106), (1418, 13396), (1576, 12053), (2836, 6698), (3349, 5672)]