20456961

素因数分解:

$3^1\times 7^2\times {\mathrm{317}}^1\times {\mathrm{439}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 31901760

約数和(自身を除く): 11444799

約数列:

[1, 3, 7, 21, 49, 147, 317, 439, 951, 1317, 2219, 3073, 6657, 9219, 15533, 21511, 46599, 64533, 139163, 417489, 974141, 2922423, 6818987, 20456961]

約数ペア:

[(1, 20456961), (3, 6818987), (7, 2922423), (21, 974141), (49, 417489), (147, 139163), (317, 64533), (439, 46599), (951, 21511), (1317, 15533), (2219, 9219), (3073, 6657)]