20736947

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 26703360

約数和(自身を除く): 5966413

約数列:

[1, 7, 11, 49, 77, 79, 487, 539, 553, 869, 3409, 3871, 5357, 6083, 23863, 37499, 38473, 42581, 262493, 269311, 423203, 1885177, 2962421, 20736947]

約数ペア:

[(1, 20736947), (7, 2962421), (11, 1885177), (49, 423203), (77, 269311), (79, 262493), (487, 42581), (539, 38473), (553, 37499), (869, 23863), (3409, 6083), (3871, 5357)]