16211725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 21204000

約数和(自身を除く): 4992275

約数列:

[1, 5, 25, 29, 59, 145, 295, 379, 725, 1475, 1711, 1895, 8555, 9475, 10991, 22361, 42775, 54955, 111805, 274775, 559025, 648469, 3242345, 16211725]

約数ペア:

[(1, 16211725), (5, 3242345), (25, 648469), (29, 559025), (59, 274775), (145, 111805), (295, 54955), (379, 42775), (725, 22361), (1475, 10991), (1711, 9475), (1895, 8555)]