1971294765

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{881}}^1$

素因数の和:1162

約数の個数: 64

約数和(自身を含む): 3511517184

約数和(自身を除く): 1540222419

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 191, 213, 355, 573, 781, 881, 955, 1065, 2101, 2343, 2643, 2865, 3905, 4405, 6303, 9691, 10505, 11715, 13215, 13561, 29073, 31515, 40683, 48455, 62551, 67805, 145365, 149171, 168271, 187653, 203415, 312755, 447513, 504813, 688061, 745855, 841355, 938265, 1850981, 2064183, 2237565, 2524065, 3440305, 5552943, 9254905, 10320915, 11947241, 27764715, 35841723, 59736205, 131419651, 179208615, 394258953, 657098255, 1971294765]

約数ペア:

[(1, 1971294765), (3, 657098255), (5, 394258953), (11, 179208615), (15, 131419651), (33, 59736205), (55, 35841723), (71, 27764715), (165, 11947241), (191, 10320915), (213, 9254905), (355, 5552943), (573, 3440305), (781, 2524065), (881, 2237565), (955, 2064183), (1065, 1850981), (2101, 938265), (2343, 841355), (2643, 745855), (2865, 688061), (3905, 504813), (4405, 447513), (6303, 312755), (9691, 203415), (10505, 187653), (11715, 168271), (13215, 149171), (13561, 145365), (29073, 67805), (31515, 62551), (40683, 48455)]