About the Number

21430440

21430439 ← → 21430441

2進数表記:1010001110000000010101000

漢数字表記:二千百四十三万四百四十

素因数分解:

2 3 × 3 3 × 5 1 × 19843 1

素因数の和:19863
約数の個数: 64
約数和(自身を含む): 71438400
約数和(自身を除く): 50007960

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19843, 39686, 59529, 79372, 99215, 119058, 158744, 178587, 198430, 238116, 297645, 357174, 396860, 476232, 535761, 595290, 714348, 793720, 892935, 1071522, 1190580, 1428696, 1785870, 2143044, 2381160, 2678805, 3571740, 4286088, 5357610, 7143480, 10715220, 21430440]

約数ペア:
[(1, 21430440), (2, 10715220), (3, 7143480), (4, 5357610), (5, 4286088), (6, 3571740), (8, 2678805), (9, 2381160), (10, 2143044), (12, 1785870), (15, 1428696), (18, 1190580), (20, 1071522), (24, 892935), (27, 793720), (30, 714348), (36, 595290), (40, 535761), (45, 476232), (54, 396860), (60, 357174), (72, 297645), (90, 238116), (108, 198430), (120, 178587), (135, 158744), (180, 119058), (216, 99215), (270, 79372), (360, 59529), (540, 39686), (1080, 19843)]

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