19899855

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2713}}^1$

素因数の和:2887

約数の個数: 24

約数和(自身を含む): 34717488

約数和(自身を除く): 14817633

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 2713, 7335, 8139, 13565, 24417, 40695, 122085, 442219, 1326657, 2211095, 3979971, 6633285, 19899855]

約数ペア:

[(1, 19899855), (3, 6633285), (5, 3979971), (9, 2211095), (15, 1326657), (45, 442219), (163, 122085), (489, 40695), (815, 24417), (1467, 13565), (2445, 8139), (2713, 7335)]