18728696

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 24402184

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 103, 119, 136, 191, 206, 238, 382, 412, 476, 721, 764, 824, 952, 1337, 1442, 1528, 1751, 2674, 2884, 3247, 3502, 5348, 5768, 6494, 7004, 10696, 12257, 12988, 14008, 19673, 22729, 24514, 25976, 39346, 45458, 49028, 78692, 90916, 98056, 137711, 157384, 181832, 275422, 334441, 550844, 668882, 1101688, 1337764, 2341087, 2675528, 4682174, 9364348, 18728696]

約数ペア:

[(1, 18728696), (2, 9364348), (4, 4682174), (7, 2675528), (8, 2341087), (14, 1337764), (17, 1101688), (28, 668882), (34, 550844), (56, 334441), (68, 275422), (103, 181832), (119, 157384), (136, 137711), (191, 98056), (206, 90916), (238, 78692), (382, 49028), (412, 45458), (476, 39346), (721, 25976), (764, 24514), (824, 22729), (952, 19673), (1337, 14008), (1442, 12988), (1528, 12257), (1751, 10696), (2674, 7004), (2884, 6494), (3247, 5768), (3502, 5348)]