20244357

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 16251003

約数列:

[1, 3, 7, 9, 21, 27, 43, 47, 53, 63, 129, 141, 159, 189, 301, 329, 371, 387, 423, 477, 903, 987, 1113, 1161, 1269, 1431, 2021, 2279, 2491, 2709, 2961, 3339, 6063, 6837, 7473, 8127, 8883, 10017, 14147, 15953, 17437, 18189, 20511, 22419, 42441, 47859, 52311, 54567, 61533, 67257, 107113, 127323, 143577, 156933, 321339, 381969, 430731, 470799, 749791, 964017, 2249373, 2892051, 6748119, 20244357]

約数ペア:

[(1, 20244357), (3, 6748119), (7, 2892051), (9, 2249373), (21, 964017), (27, 749791), (43, 470799), (47, 430731), (53, 381969), (63, 321339), (129, 156933), (141, 143577), (159, 127323), (189, 107113), (301, 67257), (329, 61533), (371, 54567), (387, 52311), (423, 47859), (477, 42441), (903, 22419), (987, 20511), (1113, 18189), (1161, 17437), (1269, 15953), (1431, 14147), (2021, 10017), (2279, 8883), (2491, 8127), (2709, 7473), (2961, 6837), (3339, 6063)]