261953967

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1129}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 390528000

約数和(自身を除く): 128574033

約数列:

[1, 3, 11, 33, 79, 89, 237, 267, 869, 979, 1129, 2607, 2937, 3387, 7031, 12419, 21093, 37257, 77341, 89191, 100481, 232023, 267573, 301443, 981101, 1105291, 2943303, 3315873, 7937999, 23813997, 87317989, 261953967]

約数ペア:

[(1, 261953967), (3, 87317989), (11, 23813997), (33, 7937999), (79, 3315873), (89, 2943303), (237, 1105291), (267, 981101), (869, 301443), (979, 267573), (1129, 232023), (2607, 100481), (2937, 89191), (3387, 77341), (7031, 37257), (12419, 21093)]