19899115

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{1231}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 24748416

約数和(自身を除く): 4849301

約数列:

[1, 5, 53, 61, 265, 305, 1231, 3233, 6155, 16165, 65243, 75091, 326215, 375455, 3979823, 19899115]

約数ペア:

[(1, 19899115), (5, 3979823), (53, 375455), (61, 326215), (265, 75091), (305, 65243), (1231, 16165), (3233, 6155)]