258818

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:174

約数の個数: 24

約数和(自身を含む): 478800

約数和(自身を除く): 219982

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 139, 266, 278, 931, 973, 1862, 1946, 2641, 5282, 6811, 13622, 18487, 36974, 129409, 258818]

約数ペア:

[(1, 258818), (2, 129409), (7, 36974), (14, 18487), (19, 13622), (38, 6811), (49, 5282), (98, 2641), (133, 1946), (139, 1862), (266, 973), (278, 931)]