20347583991

素因数分解:

$3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{563}}^1\times {\mathrm{3833}}^1$

素因数の和:4855

約数の個数: 32

約数和(自身を含む): 31138214400

約数和(自身を除く): 10790630409

約数列:

[1, 3, 7, 21, 449, 563, 1347, 1689, 3143, 3833, 3941, 9429, 11499, 11823, 26831, 80493, 252787, 758361, 1721017, 1769509, 2157979, 5163051, 5308527, 6473937, 12047119, 15105853, 36141357, 45317559, 968932571, 2906797713, 6782527997, 20347583991]

約数ペア:

[(1, 20347583991), (3, 6782527997), (7, 2906797713), (21, 968932571), (449, 45317559), (563, 36141357), (1347, 15105853), (1689, 12047119), (3143, 6473937), (3833, 5308527), (3941, 5163051), (9429, 2157979), (11499, 1769509), (11823, 1721017), (26831, 758361), (80493, 252787)]