18703251

素因数分解:

$3^3\times 7^2\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 32868480

約数和(自身を除く): 14165229

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 67, 147, 189, 201, 211, 441, 469, 603, 633, 1323, 1407, 1477, 1809, 1899, 3283, 4221, 4431, 5697, 9849, 10339, 12663, 13293, 14137, 29547, 31017, 39879, 42411, 88641, 93051, 98959, 127233, 279153, 296877, 381699, 692713, 890631, 2078139, 2671893, 6234417, 18703251]

約数ペア:

[(1, 18703251), (3, 6234417), (7, 2671893), (9, 2078139), (21, 890631), (27, 692713), (49, 381699), (63, 296877), (67, 279153), (147, 127233), (189, 98959), (201, 93051), (211, 88641), (441, 42411), (469, 39879), (603, 31017), (633, 29547), (1323, 14137), (1407, 13293), (1477, 12663), (1809, 10339), (1899, 9849), (3283, 5697), (4221, 4431)]