About the Number

201386991

201386990 ← → 201386992

2進数表記:1100000000001110101111101111

漢数字表記:二億百三十八万六千九百九十一

素因数分解:

3 1 × 13 2 × 29 1 × 13697 1

素因数の和:13755
約数の個数: 24
約数和(自身を含む): 300808080
約数和(自身を除く): 99421089

約数列:
[1, 3, 13, 29, 39, 87, 169, 377, 507, 1131, 4901, 13697, 14703, 41091, 178061, 397213, 534183, 1191639, 2314793, 5163769, 6944379, 15491307, 67128997, 201386991]

約数ペア:
[(1, 201386991), (3, 67128997), (13, 15491307), (29, 6944379), (39, 5163769), (87, 2314793), (169, 1191639), (377, 534183), (507, 397213), (1131, 178061), (4901, 41091), (13697, 14703)]

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