19757655

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8609}}^1$

素因数の和:8640

約数の個数: 32

約数和(自身を含む): 37195200

約数和(自身を除く): 17437545

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8609, 25827, 43045, 77481, 129135, 146353, 232443, 387405, 439059, 731765, 1162215, 1317177, 2195295, 3951531, 6585885, 19757655]

約数ペア:

[(1, 19757655), (3, 6585885), (5, 3951531), (9, 2195295), (15, 1317177), (17, 1162215), (27, 731765), (45, 439059), (51, 387405), (85, 232443), (135, 146353), (153, 129135), (255, 77481), (459, 43045), (765, 25827), (2295, 8609)]