20187399735

素因数分解:

$3^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{697681}}^1$

素因数の和:698335

約数の個数: 24

約数和(自身を含む): 35045962224

約数和(自身を除く): 14858562489

約数列:

[1, 3, 5, 9, 15, 45, 643, 1929, 3215, 5787, 9645, 28935, 697681, 2093043, 3488405, 6279129, 10465215, 31395645, 448608883, 1345826649, 2243044415, 4037479947, 6729133245, 20187399735]

約数ペア:

[(1, 20187399735), (3, 6729133245), (5, 4037479947), (9, 2243044415), (15, 1345826649), (45, 448608883), (643, 31395645), (1929, 10465215), (3215, 6279129), (5787, 3488405), (9645, 2093043), (28935, 697681)]