21801885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2333}}^1$

素因数の和:2437

約数の個数: 32

約数和(自身を含む): 40331520

約数和(自身を除く): 18529635

約数列:

[1, 3, 5, 7, 15, 21, 35, 89, 105, 267, 445, 623, 1335, 1869, 2333, 3115, 6999, 9345, 11665, 16331, 34995, 48993, 81655, 207637, 244965, 622911, 1038185, 1453459, 3114555, 4360377, 7267295, 21801885]

約数ペア:

[(1, 21801885), (3, 7267295), (5, 4360377), (7, 3114555), (15, 1453459), (21, 1038185), (35, 622911), (89, 244965), (105, 207637), (267, 81655), (445, 48993), (623, 34995), (1335, 16331), (1869, 11665), (2333, 9345), (3115, 6999)]