638035293

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{22291}}^1$

素因数の和:22377

約数の個数: 32

約数和(自身を含む): 1027215360

約数和(自身を除く): 389180067

約数列:

[1, 3, 7, 21, 29, 47, 87, 141, 203, 329, 609, 987, 1363, 4089, 9541, 22291, 28623, 66873, 156037, 468111, 646439, 1047677, 1939317, 3143031, 4525073, 7333739, 13575219, 22001217, 30382633, 91147899, 212678431, 638035293]

約数ペア:

[(1, 638035293), (3, 212678431), (7, 91147899), (21, 30382633), (29, 22001217), (47, 13575219), (87, 7333739), (141, 4525073), (203, 3143031), (329, 1939317), (609, 1047677), (987, 646439), (1363, 468111), (4089, 156037), (9541, 66873), (22291, 28623)]