21000983983

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1020109}}^1$

素因数の和:1020306

約数の個数: 16

約数和(自身を含む): 25559876160

約数和(自身を除く): 4558892177

約数列:

[1, 7, 17, 119, 173, 1211, 2941, 20587, 1020109, 7140763, 17341853, 121392971, 176478857, 1235351999, 3000140569, 21000983983]

約数ペア:

[(1, 21000983983), (7, 3000140569), (17, 1235351999), (119, 176478857), (173, 121392971), (1211, 17341853), (2941, 7140763), (20587, 1020109)]