20244679

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 25444320

約数和(自身を除く): 5199641

約数列:

[1, 7, 13, 91, 109, 157, 169, 763, 1099, 1183, 1417, 2041, 9919, 14287, 17113, 18421, 26533, 119791, 128947, 185731, 222469, 1557283, 2892097, 20244679]

約数ペア:

[(1, 20244679), (7, 2892097), (13, 1557283), (91, 222469), (109, 185731), (157, 128947), (169, 119791), (763, 26533), (1099, 18421), (1183, 17113), (1417, 14287), (2041, 9919)]