81115581

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 116444160

約数和(自身を除く): 35328579

約数列:

[1, 3, 29, 37, 87, 111, 113, 223, 339, 669, 1073, 3219, 3277, 4181, 6467, 8251, 9831, 12543, 19401, 24753, 25199, 75597, 121249, 239279, 363747, 717837, 730771, 932363, 2192313, 2797089, 27038527, 81115581]

約数ペア:

[(1, 81115581), (3, 27038527), (29, 2797089), (37, 2192313), (87, 932363), (111, 730771), (113, 717837), (223, 363747), (339, 239279), (669, 121249), (1073, 75597), (3219, 25199), (3277, 24753), (4181, 19401), (6467, 12543), (8251, 9831)]