19971292

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41263}}^1$

素因数の和:41289

約数の個数: 18

約数和(自身を含む): 38416784

約数和(自身を除く): 18445492

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41263, 82526, 165052, 453893, 907786, 1815572, 4992823, 9985646, 19971292]

約数ペア:

[(1, 19971292), (2, 9985646), (4, 4992823), (11, 1815572), (22, 907786), (44, 453893), (121, 165052), (242, 82526), (484, 41263)]