20489231

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{331}}^1$

素因数の和:614

約数の個数: 16

約数和(自身を含む): 24222720

約数和(自身を除く): 3733489

約数列:

[1, 7, 37, 239, 259, 331, 1673, 2317, 8843, 12247, 61901, 79109, 85729, 553763, 2927033, 20489231]

約数ペア:

[(1, 20489231), (7, 2927033), (37, 553763), (239, 85729), (259, 79109), (331, 61901), (1673, 12247), (2317, 8843)]