8638413

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 13762560

約数和(自身を除く): 5124147

約数列:

[1, 3, 7, 21, 41, 79, 123, 127, 237, 287, 381, 553, 861, 889, 1659, 2667, 3239, 5207, 9717, 10033, 15621, 22673, 30099, 36449, 68019, 70231, 109347, 210693, 411353, 1234059, 2879471, 8638413]

約数ペア:

[(1, 8638413), (3, 2879471), (7, 1234059), (21, 411353), (41, 210693), (79, 109347), (123, 70231), (127, 68019), (237, 36449), (287, 30099), (381, 22673), (553, 15621), (861, 10033), (889, 9717), (1659, 5207), (2667, 3239)]