19308165

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 31881600

約数和(自身を除く): 12573435

約数列:

[1, 3, 5, 15, 53, 149, 159, 163, 265, 447, 489, 745, 795, 815, 2235, 2445, 7897, 8639, 23691, 24287, 25917, 39485, 43195, 72861, 118455, 121435, 129585, 364305, 1287211, 3861633, 6436055, 19308165]

約数ペア:

[(1, 19308165), (3, 6436055), (5, 3861633), (15, 1287211), (53, 364305), (149, 129585), (159, 121435), (163, 118455), (265, 72861), (447, 43195), (489, 39485), (745, 25917), (795, 24287), (815, 23691), (2235, 8639), (2445, 7897)]