21257642

素因数分解:

$2^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{6689}}^1$

素因数の和:6925

約数の個数: 16

約数和(自身を含む): 36607680

約数和(自身を除く): 15350038

約数列:

[1, 2, 7, 14, 227, 454, 1589, 3178, 6689, 13378, 46823, 93646, 1518403, 3036806, 10628821, 21257642]

約数ペア:

[(1, 21257642), (2, 10628821), (7, 3036806), (14, 1518403), (227, 93646), (454, 46823), (1589, 13378), (3178, 6689)]