19740147

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{227}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 31256064

約数和(自身を除く): 11515917

約数列:

[1, 3, 7, 21, 41, 101, 123, 227, 287, 303, 681, 707, 861, 1589, 2121, 4141, 4767, 9307, 12423, 22927, 27921, 28987, 65149, 68781, 86961, 160489, 195447, 481467, 940007, 2820021, 6580049, 19740147]

約数ペア:

[(1, 19740147), (3, 6580049), (7, 2820021), (21, 940007), (41, 481467), (101, 195447), (123, 160489), (227, 86961), (287, 68781), (303, 65149), (681, 28987), (707, 27921), (861, 22927), (1589, 12423), (2121, 9307), (4141, 4767)]