20565519

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{227}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 31256064

約数和(自身を除く): 10690545

約数列:

[1, 3, 13, 23, 39, 69, 101, 227, 299, 303, 681, 897, 1313, 2323, 2951, 3939, 5221, 6969, 8853, 15663, 22927, 30199, 67873, 68781, 90597, 203619, 298051, 527321, 894153, 1581963, 6855173, 20565519]

約数ペア:

[(1, 20565519), (3, 6855173), (13, 1581963), (23, 894153), (39, 527321), (69, 298051), (101, 203619), (227, 90597), (299, 68781), (303, 67873), (681, 30199), (897, 22927), (1313, 15663), (2323, 8853), (2951, 6969), (3939, 5221)]