215175513

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{77041}}^1$

素因数の和:77077

約数の個数: 24

約数和(自身を含む): 351311520

約数和(自身を除く): 136136007

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 77041, 231123, 539287, 1463779, 1617861, 3775009, 4391337, 10246453, 11325027, 30739359, 71725171, 215175513]

約数ペア:

[(1, 215175513), (3, 71725171), (7, 30739359), (19, 11325027), (21, 10246453), (49, 4391337), (57, 3775009), (133, 1617861), (147, 1463779), (399, 539287), (931, 231123), (2793, 77041)]