21102851

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{5171}}^1$

素因数の和:5242

約数の個数: 16

約数和(自身を含む): 26811648

約数和(自身を除く): 5708797

約数列:

[1, 7, 11, 53, 77, 371, 583, 4081, 5171, 36197, 56881, 274063, 398167, 1918441, 3014693, 21102851]

約数ペア:

[(1, 21102851), (7, 3014693), (11, 1918441), (53, 398167), (77, 274063), (371, 56881), (583, 36197), (4081, 5171)]