About the Number

21311100

21311099 ← → 21311101

2進数表記:1010001010010111001111100

漢数字表記:二千百三十一万千百

素因数分解:

2 2 × 3 5 × 5 2 × 877 1

素因数の和:906
約数の個数: 108
約数和(自身を含む): 69351464
約数和(自身を除く): 48040364

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 243, 270, 300, 324, 405, 450, 486, 540, 675, 810, 877, 900, 972, 1215, 1350, 1620, 1754, 2025, 2430, 2631, 2700, 3508, 4050, 4385, 4860, 5262, 6075, 7893, 8100, 8770, 10524, 12150, 13155, 15786, 17540, 21925, 23679, 24300, 26310, 31572, 39465, 43850, 47358, 52620, 65775, 71037, 78930, 87700, 94716, 118395, 131550, 142074, 157860, 197325, 213111, 236790, 263100, 284148, 355185, 394650, 426222, 473580, 591975, 710370, 789300, 852444, 1065555, 1183950, 1420740, 1775925, 2131110, 2367900, 3551850, 4262220, 5327775, 7103700, 10655550, 21311100]

約数ペア:
[(1, 21311100), (2, 10655550), (3, 7103700), (4, 5327775), (5, 4262220), (6, 3551850), (9, 2367900), (10, 2131110), (12, 1775925), (15, 1420740), (18, 1183950), (20, 1065555), (25, 852444), (27, 789300), (30, 710370), (36, 591975), (45, 473580), (50, 426222), (54, 394650), (60, 355185), (75, 284148), (81, 263100), (90, 236790), (100, 213111), (108, 197325), (135, 157860), (150, 142074), (162, 131550), (180, 118395), (225, 94716), (243, 87700), (270, 78930), (300, 71037), (324, 65775), (405, 52620), (450, 47358), (486, 43850), (540, 39465), (675, 31572), (810, 26310), (877, 24300), (900, 23679), (972, 21925), (1215, 17540), (1350, 15786), (1620, 13155), (1754, 12150), (2025, 10524), (2430, 8770), (2631, 8100), (2700, 7893), (3508, 6075), (4050, 5262), (4385, 4860)]

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