19257909

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 9772491

約数列:

[1, 3, 11, 33, 79, 83, 89, 237, 249, 267, 869, 913, 979, 2607, 2739, 2937, 6557, 7031, 7387, 19671, 21093, 22161, 72127, 77341, 81257, 216381, 232023, 243771, 583573, 1750719, 6419303, 19257909]

約数ペア:

[(1, 19257909), (3, 6419303), (11, 1750719), (33, 583573), (79, 243771), (83, 232023), (89, 216381), (237, 81257), (249, 77341), (267, 72127), (869, 22161), (913, 21093), (979, 19671), (2607, 7387), (2739, 7031), (2937, 6557)]