20736818

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{821}}^1$

素因数の和:1069

約数の個数: 16

約数和(自身を含む): 31752216

約数和(自身を除く): 11015398

約数列:

[1, 2, 73, 146, 173, 346, 821, 1642, 12629, 25258, 59933, 119866, 142033, 284066, 10368409, 20736818]

約数ペア:

[(1, 20736818), (2, 10368409), (73, 284066), (146, 142033), (173, 119866), (346, 59933), (821, 25258), (1642, 12629)]