19219809

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7691}}^1$

素因数の和:7725

約数の個数: 24

約数和(自身を含む): 31567968

約数和(自身を除く): 12348159

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7691, 23073, 53837, 130747, 161511, 376859, 392241, 915229, 1130577, 2745687, 6406603, 19219809]

約数ペア:

[(1, 19219809), (3, 6406603), (7, 2745687), (17, 1130577), (21, 915229), (49, 392241), (51, 376859), (119, 161511), (147, 130747), (357, 53837), (833, 23073), (2499, 7691)]