394156971

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{997}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 639358720

約数和(自身を除く): 245201749

約数列:

[1, 3, 9, 13, 31, 39, 93, 109, 117, 279, 327, 403, 981, 997, 1209, 1417, 2991, 3379, 3627, 4251, 8973, 10137, 12753, 12961, 30411, 30907, 38883, 43927, 92721, 108673, 116649, 131781, 278163, 326019, 395343, 401791, 978057, 1205373, 1412749, 3368863, 3616119, 4238247, 10106589, 12714741, 30319767, 43795219, 131385657, 394156971]

約数ペア:

[(1, 394156971), (3, 131385657), (9, 43795219), (13, 30319767), (31, 12714741), (39, 10106589), (93, 4238247), (109, 3616119), (117, 3368863), (279, 1412749), (327, 1205373), (403, 978057), (981, 401791), (997, 395343), (1209, 326019), (1417, 278163), (2991, 131781), (3379, 116649), (3627, 108673), (4251, 92721), (8973, 43927), (10137, 38883), (12753, 30907), (12961, 30411)]