About the Number

21985506

21985505 ← → 21985507

2進数表記:1010011110111100011100010

漢数字表記:二千百九十八万五千五百六

素因数分解:

2 1 × 3 4 × 113 1 × 1201 1

素因数の和:1328
約数の個数: 40
約数和(自身を含む): 49741164
約数和(自身を除く): 27755658

約数列:
[1, 2, 3, 6, 9, 18, 27, 54, 81, 113, 162, 226, 339, 678, 1017, 1201, 2034, 2402, 3051, 3603, 6102, 7206, 9153, 10809, 18306, 21618, 32427, 64854, 97281, 135713, 194562, 271426, 407139, 814278, 1221417, 2442834, 3664251, 7328502, 10992753, 21985506]

約数ペア:
[(1, 21985506), (2, 10992753), (3, 7328502), (6, 3664251), (9, 2442834), (18, 1221417), (27, 814278), (54, 407139), (81, 271426), (113, 194562), (162, 135713), (226, 97281), (339, 64854), (678, 32427), (1017, 21618), (1201, 18306), (2034, 10809), (2402, 9153), (3051, 7206), (3603, 6102)]

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