15878793

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{991}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 24879360

約数和(自身を除く): 9000567

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 991, 2289, 2973, 5341, 6937, 16023, 20811, 48559, 108019, 145677, 324057, 756133, 2268399, 5292931, 15878793]

約数ペア:

[(1, 15878793), (3, 5292931), (7, 2268399), (21, 756133), (49, 324057), (109, 145677), (147, 108019), (327, 48559), (763, 20811), (991, 16023), (2289, 6937), (2973, 5341)]