About the Number

20921250

20921249 ← → 20921251

2進数表記:1001111110011101110100010

漢数字表記:二千九十二万千二百五十

素因数分解:

2 1 × 3 1 × 5 4 × 7 1 × 797 1

素因数の和:829
約数の個数: 80
約数和(自身を含む): 59830848
約数和(自身を除く): 38909598

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 175, 210, 250, 350, 375, 525, 625, 750, 797, 875, 1050, 1250, 1594, 1750, 1875, 2391, 2625, 3750, 3985, 4375, 4782, 5250, 5579, 7970, 8750, 11158, 11955, 13125, 16737, 19925, 23910, 26250, 27895, 33474, 39850, 55790, 59775, 83685, 99625, 119550, 139475, 167370, 199250, 278950, 298875, 418425, 498125, 597750, 697375, 836850, 996250, 1394750, 1494375, 2092125, 2988750, 3486875, 4184250, 6973750, 10460625, 20921250]

約数ペア:
[(1, 20921250), (2, 10460625), (3, 6973750), (5, 4184250), (6, 3486875), (7, 2988750), (10, 2092125), (14, 1494375), (15, 1394750), (21, 996250), (25, 836850), (30, 697375), (35, 597750), (42, 498125), (50, 418425), (70, 298875), (75, 278950), (105, 199250), (125, 167370), (150, 139475), (175, 119550), (210, 99625), (250, 83685), (350, 59775), (375, 55790), (525, 39850), (625, 33474), (750, 27895), (797, 26250), (875, 23910), (1050, 19925), (1250, 16737), (1594, 13125), (1750, 11955), (1875, 11158), (2391, 8750), (2625, 7970), (3750, 5579), (3985, 5250), (4375, 4782)]

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