20271671

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 5468617

約数列:

[1, 7, 23, 37, 41, 83, 161, 259, 287, 581, 851, 943, 1517, 1909, 3071, 3403, 5957, 6601, 10619, 13363, 21497, 23821, 34891, 70633, 78269, 125911, 244237, 494431, 547883, 881377, 2895953, 20271671]

約数ペア:

[(1, 20271671), (7, 2895953), (23, 881377), (37, 547883), (41, 494431), (83, 244237), (161, 125911), (259, 78269), (287, 70633), (581, 34891), (851, 23821), (943, 21497), (1517, 13363), (1909, 10619), (3071, 6601), (3403, 5957)]