20881135

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 29067264

約数和(自身を除く): 8186129

約数列:

[1, 5, 11, 31, 37, 55, 155, 185, 331, 341, 407, 1147, 1655, 1705, 2035, 3641, 5735, 10261, 12247, 12617, 18205, 51305, 61235, 63085, 112871, 134717, 379657, 564355, 673585, 1898285, 4176227, 20881135]

約数ペア:

[(1, 20881135), (5, 4176227), (11, 1898285), (31, 673585), (37, 564355), (55, 379657), (155, 134717), (185, 112871), (331, 63085), (341, 61235), (407, 51305), (1147, 18205), (1655, 12617), (1705, 12247), (2035, 10261), (3641, 5735)]