18770901

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{307}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 25502400

約数和(自身を除く): 6731499

約数列:

[1, 3, 89, 229, 267, 307, 687, 921, 20381, 27323, 61143, 70303, 81969, 210909, 6256967, 18770901]

約数ペア:

[(1, 18770901), (3, 6256967), (89, 210909), (229, 81969), (267, 70303), (307, 61143), (687, 27323), (921, 20381)]