291227181

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{2707}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 457543680

約数和(自身を除く): 166316499

約数列:

[1, 3, 7, 21, 47, 109, 141, 327, 329, 763, 987, 2289, 2707, 5123, 8121, 15369, 18949, 35861, 56847, 107583, 127229, 295063, 381687, 885189, 890603, 2065441, 2671809, 6196323, 13867961, 41603883, 97075727, 291227181]

約数ペア:

[(1, 291227181), (3, 97075727), (7, 41603883), (21, 13867961), (47, 6196323), (109, 2671809), (141, 2065441), (327, 890603), (329, 885189), (763, 381687), (987, 295063), (2289, 127229), (2707, 107583), (5123, 56847), (8121, 35861), (15369, 18949)]