18883215

素因数分解:

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

素因数の和:241

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 16759665

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 191, 195, 507, 573, 585, 845, 955, 1521, 1719, 2197, 2483, 2535, 2865, 6591, 7449, 7605, 8595, 10985, 12415, 19773, 22347, 32279, 32955, 37245, 96837, 98865, 111735, 161395, 290511, 419627, 484185, 1258881, 1452555, 2098135, 3776643, 6294405, 18883215]

約数ペア:

[(1, 18883215), (3, 6294405), (5, 3776643), (9, 2098135), (13, 1452555), (15, 1258881), (39, 484185), (45, 419627), (65, 290511), (117, 161395), (169, 111735), (191, 98865), (195, 96837), (507, 37245), (573, 32955), (585, 32279), (845, 22347), (955, 19773), (1521, 12415), (1719, 10985), (2197, 8595), (2483, 7605), (2535, 7449), (2865, 6591)]