21605616

素因数分解:

$2^4\times 3^5\times {\mathrm{5557}}^1$

素因数の和:5580

約数の個数: 60

約数和(自身を含む): 62716472

約数和(自身を除く): 41110856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 432, 486, 648, 972, 1296, 1944, 3888, 5557, 11114, 16671, 22228, 33342, 44456, 50013, 66684, 88912, 100026, 133368, 150039, 200052, 266736, 300078, 400104, 450117, 600156, 800208, 900234, 1200312, 1350351, 1800468, 2400624, 2700702, 3600936, 5401404, 7201872, 10802808, 21605616]

約数ペア:

[(1, 21605616), (2, 10802808), (3, 7201872), (4, 5401404), (6, 3600936), (8, 2700702), (9, 2400624), (12, 1800468), (16, 1350351), (18, 1200312), (24, 900234), (27, 800208), (36, 600156), (48, 450117), (54, 400104), (72, 300078), (81, 266736), (108, 200052), (144, 150039), (162, 133368), (216, 100026), (243, 88912), (324, 66684), (432, 50013), (486, 44456), (648, 33342), (972, 22228), (1296, 16671), (1944, 11114), (3888, 5557)]