21000398518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19687}}^1\times {\mathrm{48487}}^1$

素因数の和:68187

約数の個数: 16

約数和(自身を含む): 34366742784

約数和(自身を除く): 13366344266

約数列:

[1, 2, 11, 22, 19687, 39374, 48487, 96974, 216557, 433114, 533357, 1066714, 954563569, 1909127138, 10500199259, 21000398518]

約数ペア:

[(1, 21000398518), (2, 10500199259), (11, 1909127138), (22, 954563569), (19687, 1066714), (39374, 533357), (48487, 433114), (96974, 216557)]