About the Number

20689929

20689928 ← → 20689930

2進数表記:1001110111011010000001001

漢数字表記:二千六十八万九千九百二十九

素因数分解:

3 2 × 13 1 × 181 1 × 977 1

素因数の和:1177
約数の個数: 24
約数和(自身を含む): 32395272
約数和(自身を除く): 11705343

約数列:
[1, 3, 9, 13, 39, 117, 181, 543, 977, 1629, 2353, 2931, 7059, 8793, 12701, 21177, 38103, 114309, 176837, 530511, 1591533, 2298881, 6896643, 20689929]

約数ペア:
[(1, 20689929), (3, 6896643), (9, 2298881), (13, 1591533), (39, 530511), (117, 176837), (181, 114309), (543, 38103), (977, 21177), (1629, 12701), (2353, 8793), (2931, 7059)]

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