1990403723

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{122509}}^1$

素因数の和:122738

約数の個数: 16

約数和(自身を含む): 2493323520

約数和(自身を除く): 502919797

約数列:

[1, 7, 11, 77, 211, 1477, 2321, 16247, 122509, 857563, 1347599, 9433193, 25849399, 180945793, 284343389, 1990403723]

約数ペア:

[(1, 1990403723), (7, 284343389), (11, 180945793), (77, 25849399), (211, 9433193), (1477, 1347599), (2321, 857563), (16247, 122509)]