391388788

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{340931}}^1$

素因数の和:340983

約数の個数: 24

約数和(自身を含む): 801872064

約数和(自身を除く): 410483276

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 340931, 681862, 1363724, 2386517, 4773034, 9546068, 13978171, 27956342, 55912684, 97847197, 195694394, 391388788]

約数ペア:

[(1, 391388788), (2, 195694394), (4, 97847197), (7, 55912684), (14, 27956342), (28, 13978171), (41, 9546068), (82, 4773034), (164, 2386517), (287, 1363724), (574, 681862), (1148, 340931)]