18212805

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 34384896

約数和(自身を除く): 16172091

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 163, 191, 195, 489, 573, 585, 815, 955, 1467, 1719, 2119, 2445, 2483, 2865, 6357, 7335, 7449, 8595, 10595, 12415, 19071, 22347, 31133, 31785, 37245, 93399, 95355, 111735, 155665, 280197, 404729, 466995, 1214187, 1400985, 2023645, 3642561, 6070935, 18212805]

約数ペア:

[(1, 18212805), (3, 6070935), (5, 3642561), (9, 2023645), (13, 1400985), (15, 1214187), (39, 466995), (45, 404729), (65, 280197), (117, 155665), (163, 111735), (191, 95355), (195, 93399), (489, 37245), (573, 31785), (585, 31133), (815, 22347), (955, 19071), (1467, 12415), (1719, 10595), (2119, 8595), (2445, 7449), (2483, 7335), (2865, 6357)]