20656968

素因数分解:

$2^3\times 3^1\times {\mathrm{431}}^1\times {\mathrm{1997}}^1$

素因数の和:2437

約数の個数: 32

約数和(自身を含む): 51788160

約数和(自身を除く): 31131192

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 431, 862, 1293, 1724, 1997, 2586, 3448, 3994, 5172, 5991, 7988, 10344, 11982, 15976, 23964, 47928, 860707, 1721414, 2582121, 3442828, 5164242, 6885656, 10328484, 20656968]

約数ペア:

[(1, 20656968), (2, 10328484), (3, 6885656), (4, 5164242), (6, 3442828), (8, 2582121), (12, 1721414), (24, 860707), (431, 47928), (862, 23964), (1293, 15976), (1724, 11982), (1997, 10344), (2586, 7988), (3448, 5991), (3994, 5172)]