About the Number

21187764

21187763 ← → 21187765

2進数表記:1010000110100110010110100

漢数字表記:二千百十八万七千七百六十四

素因数分解:

2 2 × 3 3 × 13 1 × 15091 1

素因数の和:15117
約数の個数: 48
約数和(自身を含む): 59160640
約数和(自身を除く): 37972876

約数列:
[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15091, 30182, 45273, 60364, 90546, 135819, 181092, 196183, 271638, 392366, 407457, 543276, 588549, 784732, 814914, 1177098, 1629828, 1765647, 2354196, 3531294, 5296941, 7062588, 10593882, 21187764]

約数ペア:
[(1, 21187764), (2, 10593882), (3, 7062588), (4, 5296941), (6, 3531294), (9, 2354196), (12, 1765647), (13, 1629828), (18, 1177098), (26, 814914), (27, 784732), (36, 588549), (39, 543276), (52, 407457), (54, 392366), (78, 271638), (108, 196183), (117, 181092), (156, 135819), (234, 90546), (351, 60364), (468, 45273), (702, 30182), (1404, 15091)]

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