215375679

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{17609}}^1$

素因数の和:17772

約数の個数: 20

約数和(自身を含む): 323883120

約数和(自身を除く): 108507441

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 4077, 12231, 17609, 52827, 158481, 475443, 1426329, 2658959, 7976877, 23930631, 71791893, 215375679]

約数ペア:

[(1, 215375679), (3, 71791893), (9, 23930631), (27, 7976877), (81, 2658959), (151, 1426329), (453, 475443), (1359, 158481), (4077, 52827), (12231, 17609)]