18642608

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68539}}^1$

素因数の和:68564

約数の個数: 20

約数和(自身を含む): 38245320

約数和(自身を除く): 19602712

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68539, 137078, 274156, 548312, 1096624, 1165163, 2330326, 4660652, 9321304, 18642608]

約数ペア:

[(1, 18642608), (2, 9321304), (4, 4660652), (8, 2330326), (16, 1165163), (17, 1096624), (34, 548312), (68, 274156), (136, 137078), (272, 68539)]