20121101871

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{1973}}^1$

素因数の和:2216

約数の個数: 64

約数和(自身を含む): 30563205120

約数和(自身を除く): 10442103249

約数列:

[1, 3, 13, 29, 39, 71, 87, 127, 213, 377, 381, 923, 1131, 1651, 1973, 2059, 2769, 3683, 4953, 5919, 6177, 9017, 11049, 25649, 26767, 27051, 47879, 57217, 76947, 80301, 117221, 140083, 143637, 171651, 250571, 261493, 351663, 420249, 743821, 751713, 784479, 1821079, 2231463, 3257423, 3399409, 4062407, 5463237, 7266559, 9772269, 10198227, 12187221, 17790541, 21799677, 52811291, 53371623, 94465267, 158433873, 231277033, 283395801, 515925689, 693831099, 1547777067, 6707033957, 20121101871]

約数ペア:

[(1, 20121101871), (3, 6707033957), (13, 1547777067), (29, 693831099), (39, 515925689), (71, 283395801), (87, 231277033), (127, 158433873), (213, 94465267), (377, 53371623), (381, 52811291), (923, 21799677), (1131, 17790541), (1651, 12187221), (1973, 10198227), (2059, 9772269), (2769, 7266559), (3683, 5463237), (4953, 4062407), (5919, 3399409), (6177, 3257423), (9017, 2231463), (11049, 1821079), (25649, 784479), (26767, 751713), (27051, 743821), (47879, 420249), (57217, 351663), (76947, 261493), (80301, 250571), (117221, 171651), (140083, 143637)]