20528715

素因数分解:

$3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{3877}}^1$

素因数の和:4238

約数の個数: 16

約数和(自身を含む): 32947488

約数和(自身を除く): 12418773

約数列:

[1, 3, 5, 15, 353, 1059, 1765, 3877, 5295, 11631, 19385, 58155, 1368581, 4105743, 6842905, 20528715]

約数ペア:

[(1, 20528715), (3, 6842905), (5, 4105743), (15, 1368581), (353, 58155), (1059, 19385), (1765, 11631), (3877, 5295)]