20739573

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1021}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 31301816

約数和(自身を除く): 10562243

約数列:

[1, 3, 9, 37, 61, 111, 183, 333, 549, 1021, 2257, 3063, 6771, 9189, 20313, 37777, 62281, 113331, 186843, 339993, 560529, 2304397, 6913191, 20739573]

約数ペア:

[(1, 20739573), (3, 6913191), (9, 2304397), (37, 560529), (61, 339993), (111, 186843), (183, 113331), (333, 62281), (549, 37777), (1021, 20313), (2257, 9189), (3063, 6771)]