20972435

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 29237760

約数和(自身を除く): 8265325

約数列:

[1, 5, 11, 23, 55, 59, 115, 253, 281, 295, 649, 1265, 1357, 1405, 3091, 3245, 6463, 6785, 14927, 15455, 16579, 32315, 71093, 74635, 82895, 182369, 355465, 381317, 911845, 1906585, 4194487, 20972435]

約数ペア:

[(1, 20972435), (5, 4194487), (11, 1906585), (23, 911845), (55, 381317), (59, 355465), (115, 182369), (253, 82895), (281, 74635), (295, 71093), (649, 32315), (1265, 16579), (1357, 15455), (1405, 14927), (3091, 6785), (3245, 6463)]