31397895

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13681}}^1$

素因数の和:13712

約数の個数: 32

約数和(自身を含む): 59106240

約数和(自身を除く): 27708345

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 13681, 41043, 68405, 123129, 205215, 232577, 369387, 615645, 697731, 1162885, 1846935, 2093193, 3488655, 6279579, 10465965, 31397895]

約数ペア:

[(1, 31397895), (3, 10465965), (5, 6279579), (9, 3488655), (15, 2093193), (17, 1846935), (27, 1162885), (45, 697731), (51, 615645), (85, 369387), (135, 232577), (153, 205215), (255, 123129), (459, 68405), (765, 41043), (2295, 13681)]