217405551

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{937}}^1$

素因数の和:1119

約数の個数: 32

約数和(自身を含む): 324172800

約数和(自身を除く): 106767249

約数列:

[1, 3, 11, 33, 79, 89, 237, 267, 869, 937, 979, 2607, 2811, 2937, 7031, 10307, 21093, 30921, 74023, 77341, 83393, 222069, 232023, 250179, 814253, 917323, 2442759, 2751969, 6588047, 19764141, 72468517, 217405551]

約数ペア:

[(1, 217405551), (3, 72468517), (11, 19764141), (33, 6588047), (79, 2751969), (89, 2442759), (237, 917323), (267, 814253), (869, 250179), (937, 232023), (979, 222069), (2607, 83393), (2811, 77341), (2937, 74023), (7031, 30921), (10307, 21093)]