21660076

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2767}}^1$

素因数の和:2893

約数の個数: 24

約数和(自身を含む): 40302080

約数和(自身を除く): 18642004

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 2767, 3914, 5534, 7828, 11068, 52573, 105146, 210292, 285001, 570002, 1140004, 5415019, 10830038, 21660076]

約数ペア:

[(1, 21660076), (2, 10830038), (4, 5415019), (19, 1140004), (38, 570002), (76, 285001), (103, 210292), (206, 105146), (412, 52573), (1957, 11068), (2767, 7828), (3914, 5534)]