About the Number

23187890

23187889 ← → 23187891

2進数表記:1011000011101000110110010

漢数字表記:二千三百十八万七千八百九十

素因数分解:

2 1 × 5 1 × 11 1 × 71 1 × 2969 1

素因数の和:3058
約数の個数: 32
約数和(自身を含む): 46189440
約数和(自身を除く): 23001550

約数列:
[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 2969, 3905, 5938, 7810, 14845, 29690, 32659, 65318, 163295, 210799, 326590, 421598, 1053995, 2107990, 2318789, 4637578, 11593945, 23187890]

約数ペア:
[(1, 23187890), (2, 11593945), (5, 4637578), (10, 2318789), (11, 2107990), (22, 1053995), (55, 421598), (71, 326590), (110, 210799), (142, 163295), (355, 65318), (710, 32659), (781, 29690), (1562, 14845), (2969, 7810), (3905, 5938)]

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