20996858968

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{1061}}^1\times {\mathrm{34841}}^1$

素因数の和:35979

約数の個数: 32

約数和(自身を含む): 39962380320

約数和(自身を除く): 18965521352

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 1061, 2122, 4244, 8488, 34841, 69682, 75331, 139364, 150662, 278728, 301324, 602648, 2473711, 4947422, 9894844, 19789688, 36966301, 73932602, 147865204, 295730408, 2624607371, 5249214742, 10498429484, 20996858968]

約数ペア:

[(1, 20996858968), (2, 10498429484), (4, 5249214742), (8, 2624607371), (71, 295730408), (142, 147865204), (284, 73932602), (568, 36966301), (1061, 19789688), (2122, 9894844), (4244, 4947422), (8488, 2473711), (34841, 602648), (69682, 301324), (75331, 278728), (139364, 150662)]