About the Number

21373840

21373839 ← → 21373841

2進数表記:1010001100010001110010000

漢数字表記:二千百三十七万三千八百四十

素因数分解:

2 4 × 5 1 × 53 1 × 71 2

素因数の和:208
約数の個数: 60
約数和(自身を含む): 51354972
約数和(自身を除く): 29981132

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 71, 80, 106, 142, 212, 265, 284, 355, 424, 530, 568, 710, 848, 1060, 1136, 1420, 2120, 2840, 3763, 4240, 5041, 5680, 7526, 10082, 15052, 18815, 20164, 25205, 30104, 37630, 40328, 50410, 60208, 75260, 80656, 100820, 150520, 201640, 267173, 301040, 403280, 534346, 1068692, 1335865, 2137384, 2671730, 4274768, 5343460, 10686920, 21373840]

約数ペア:
[(1, 21373840), (2, 10686920), (4, 5343460), (5, 4274768), (8, 2671730), (10, 2137384), (16, 1335865), (20, 1068692), (40, 534346), (53, 403280), (71, 301040), (80, 267173), (106, 201640), (142, 150520), (212, 100820), (265, 80656), (284, 75260), (355, 60208), (424, 50410), (530, 40328), (568, 37630), (710, 30104), (848, 25205), (1060, 20164), (1136, 18815), (1420, 15052), (2120, 10082), (2840, 7526), (3763, 5680), (4240, 5041)]

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