21365799

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1283}}^1$

素因数の和:1367

約数の個数: 32

約数和(自身を含む): 35664384

約数和(自身を除く): 14298585

約数列:

[1, 3, 7, 13, 21, 39, 61, 91, 183, 273, 427, 793, 1281, 1283, 2379, 3849, 5551, 8981, 16653, 16679, 26943, 50037, 78263, 116753, 234789, 350259, 547841, 1017419, 1643523, 3052257, 7121933, 21365799]

約数ペア:

[(1, 21365799), (3, 7121933), (7, 3052257), (13, 1643523), (21, 1017419), (39, 547841), (61, 350259), (91, 234789), (183, 116753), (273, 78263), (427, 50037), (793, 26943), (1281, 16679), (1283, 16653), (2379, 8981), (3849, 5551)]