About the Number

20970248

20970247 ← → 20970249

2進数表記:1001111111111101100001000

漢数字表記:二千九十七万二百四十八

素因数分解:

2 3 × 13 1 × 17 1 × 29 1 × 409 1

素因数の和:474
約数の個数: 64
約数和(自身を含む): 46494000
約数和(自身を除く): 25523752

約数列:
[1, 2, 4, 8, 13, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 221, 232, 377, 409, 442, 493, 754, 818, 884, 986, 1508, 1636, 1768, 1972, 3016, 3272, 3944, 5317, 6409, 6953, 10634, 11861, 12818, 13906, 21268, 23722, 25636, 27812, 42536, 47444, 51272, 55624, 90389, 94888, 154193, 180778, 201637, 308386, 361556, 403274, 616772, 723112, 806548, 1233544, 1613096, 2621281, 5242562, 10485124, 20970248]

約数ペア:
[(1, 20970248), (2, 10485124), (4, 5242562), (8, 2621281), (13, 1613096), (17, 1233544), (26, 806548), (29, 723112), (34, 616772), (52, 403274), (58, 361556), (68, 308386), (104, 201637), (116, 180778), (136, 154193), (221, 94888), (232, 90389), (377, 55624), (409, 51272), (442, 47444), (493, 42536), (754, 27812), (818, 25636), (884, 23722), (986, 21268), (1508, 13906), (1636, 12818), (1768, 11861), (1972, 10634), (3016, 6953), (3272, 6409), (3944, 5317)]

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