21374735

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{821}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 26514432

約数和(自身を除く): 5139697

約数列:

[1, 5, 41, 127, 205, 635, 821, 4105, 5207, 26035, 33661, 104267, 168305, 521335, 4274947, 21374735]

約数ペア:

[(1, 21374735), (5, 4274947), (41, 521335), (127, 168305), (205, 104267), (635, 33661), (821, 26035), (4105, 5207)]