25199643

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 15604197

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 399, 411, 461, 959, 1383, 2603, 2877, 3227, 7809, 8759, 9681, 18221, 26277, 54663, 61313, 63157, 183939, 189471, 442099, 1199983, 1326297, 3599949, 8399881, 25199643]

約数ペア:

[(1, 25199643), (3, 8399881), (7, 3599949), (19, 1326297), (21, 1199983), (57, 442099), (133, 189471), (137, 183939), (399, 63157), (411, 61313), (461, 54663), (959, 26277), (1383, 18221), (2603, 9681), (2877, 8759), (3227, 7809)]