20815664074

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{5531}}^1\times {\mathrm{21143}}^1$

素因数の和:26765

約数の個数: 16

約数和(自身を含む): 31581524160

約数和(自身を除く): 10765860086

約数列:

[1, 2, 89, 178, 5531, 11062, 21143, 42286, 492259, 984518, 1881727, 3763454, 116941933, 233883866, 10407832037, 20815664074]

約数ペア:

[(1, 20815664074), (2, 10407832037), (89, 233883866), (178, 116941933), (5531, 3763454), (11062, 1881727), (21143, 984518), (42286, 492259)]