19888995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{617}}^1$

素因数の和:939

約数の個数: 32

約数和(自身を含む): 36546048

約数和(自身を除く): 16657053

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 307, 617, 921, 1535, 1851, 2149, 3085, 4319, 4605, 6447, 9255, 10745, 12957, 21595, 32235, 64785, 189419, 568257, 947095, 1325933, 2841285, 3977799, 6629665, 19888995]

約数ペア:

[(1, 19888995), (3, 6629665), (5, 3977799), (7, 2841285), (15, 1325933), (21, 947095), (35, 568257), (105, 189419), (307, 64785), (617, 32235), (921, 21595), (1535, 12957), (1851, 10745), (2149, 9255), (3085, 6447), (4319, 4605)]