18677204

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3947}}^1$

素因数の和:3984

約数の個数: 36

約数和(自身を含む): 40459104

約数和(自身を除く): 21781900

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 3947, 4732, 7894, 15788, 27629, 51311, 55258, 102622, 110516, 205244, 359177, 667043, 718354, 1334086, 1436708, 2668172, 4669301, 9338602, 18677204]

約数ペア:

[(1, 18677204), (2, 9338602), (4, 4669301), (7, 2668172), (13, 1436708), (14, 1334086), (26, 718354), (28, 667043), (52, 359177), (91, 205244), (169, 110516), (182, 102622), (338, 55258), (364, 51311), (676, 27629), (1183, 15788), (2366, 7894), (3947, 4732)]