20512007184

素因数分解:

$2^4\times 3^1\times {\mathrm{431}}^1\times {\mathrm{991493}}^1$

素因数の和:991935

約数の個数: 40

約数和(自身を含む): 53112350592

約数和(自身を除く): 32600343408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 431, 862, 1293, 1724, 2586, 3448, 5172, 6896, 10344, 20688, 991493, 1982986, 2974479, 3965972, 5948958, 7931944, 11897916, 15863888, 23795832, 47591664, 427333483, 854666966, 1282000449, 1709333932, 2564000898, 3418667864, 5128001796, 6837335728, 10256003592, 20512007184]

約数ペア:

[(1, 20512007184), (2, 10256003592), (3, 6837335728), (4, 5128001796), (6, 3418667864), (8, 2564000898), (12, 1709333932), (16, 1282000449), (24, 854666966), (48, 427333483), (431, 47591664), (862, 23795832), (1293, 15863888), (1724, 11897916), (2586, 7931944), (3448, 5948958), (5172, 3965972), (6896, 2974479), (10344, 1982986), (20688, 991493)]