26019999

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 38750400

約数和(自身を除く): 12730401

約数列:

[1, 3, 9, 47, 137, 141, 411, 423, 449, 1233, 1347, 4041, 6439, 19317, 21103, 57951, 61513, 63309, 184539, 189927, 553617, 2891111, 8673333, 26019999]

約数ペア:

[(1, 26019999), (3, 8673333), (9, 2891111), (47, 553617), (137, 189927), (141, 184539), (411, 63309), (423, 61513), (449, 57951), (1233, 21103), (1347, 19317), (4041, 6439)]