11820641

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 32

約数和(自身を含む): 15237120

約数和(自身を除く): 3416479

約数列:

[1, 7, 19, 31, 47, 61, 133, 217, 329, 427, 589, 893, 1159, 1457, 1891, 2867, 4123, 6251, 8113, 10199, 13237, 20069, 27683, 35929, 54473, 88877, 193781, 251503, 381311, 622139, 1688663, 11820641]

約数ペア:

[(1, 11820641), (7, 1688663), (19, 622139), (31, 381311), (47, 251503), (61, 193781), (133, 88877), (217, 54473), (329, 35929), (427, 27683), (589, 20069), (893, 13237), (1159, 10199), (1457, 8113), (1891, 6251), (2867, 4123)]