20921472008

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{2621}}^1\times {\mathrm{58693}}^1$

素因数の和:61337

約数の個数: 32

約数和(自身を含む): 41551830360

約数和(自身を除く): 20630358352

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 2621, 5242, 10484, 20968, 44557, 58693, 89114, 117386, 178228, 234772, 356456, 469544, 997781, 1995562, 3991124, 7982248, 153834353, 307668706, 615337412, 1230674824, 2615184001, 5230368002, 10460736004, 20921472008]

約数ペア:

[(1, 20921472008), (2, 10460736004), (4, 5230368002), (8, 2615184001), (17, 1230674824), (34, 615337412), (68, 307668706), (136, 153834353), (2621, 7982248), (5242, 3991124), (10484, 1995562), (20968, 997781), (44557, 469544), (58693, 356456), (89114, 234772), (117386, 178228)]