211857009

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 371589120

約数和(自身を除く): 159732111

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 191, 221, 239, 273, 357, 573, 663, 717, 1337, 1547, 1673, 2483, 3107, 3247, 4011, 4063, 4641, 5019, 7449, 9321, 9741, 12189, 17381, 21749, 22729, 28441, 42211, 45649, 52143, 52819, 65247, 68187, 85323, 126633, 136947, 158457, 295477, 319543, 369733, 593437, 776033, 886431, 958629, 1109199, 1780311, 2328099, 4154059, 5432231, 10088429, 12462177, 16296693, 30265287, 70619003, 211857009]

約数ペア:

[(1, 211857009), (3, 70619003), (7, 30265287), (13, 16296693), (17, 12462177), (21, 10088429), (39, 5432231), (51, 4154059), (91, 2328099), (119, 1780311), (191, 1109199), (221, 958629), (239, 886431), (273, 776033), (357, 593437), (573, 369733), (663, 319543), (717, 295477), (1337, 158457), (1547, 136947), (1673, 126633), (2483, 85323), (3107, 68187), (3247, 65247), (4011, 52819), (4063, 52143), (4641, 45649), (5019, 42211), (7449, 28441), (9321, 22729), (9741, 21749), (12189, 17381)]