21408693117

素因数分解:

$3^1\times 7^1\times {\mathrm{4957}}^1\times {\mathrm{205661}}^1$

素因数の和:210628

約数の個数: 16

約数和(自身を含む): 32629510272

約数和(自身を除く): 11220817155

約数列:

[1, 3, 7, 21, 4957, 14871, 34699, 104097, 205661, 616983, 1439627, 4318881, 1019461577, 3058384731, 7136231039, 21408693117]

約数ペア:

[(1, 21408693117), (3, 7136231039), (7, 3058384731), (21, 1019461577), (4957, 4318881), (14871, 1439627), (34699, 616983), (104097, 205661)]