21455389

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1693}}^1$

素因数の和:1764

約数の個数: 16

約数和(自身を含む): 24393600

約数和(自身を除く): 2938211

約数列:

[1, 19, 23, 29, 437, 551, 667, 1693, 12673, 32167, 38939, 49097, 739841, 932843, 1129231, 21455389]

約数ペア:

[(1, 21455389), (19, 1129231), (23, 932843), (29, 739841), (437, 49097), (551, 38939), (667, 32167), (1693, 12673)]