21915113

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 5179927

約数列:

[1, 11, 19, 23, 47, 97, 209, 253, 437, 517, 893, 1067, 1081, 1843, 2231, 4559, 4807, 9823, 11891, 20273, 20539, 24541, 42389, 50149, 86621, 104857, 225929, 466279, 952831, 1153427, 1992283, 21915113]

約数ペア:

[(1, 21915113), (11, 1992283), (19, 1153427), (23, 952831), (47, 466279), (97, 225929), (209, 104857), (253, 86621), (437, 50149), (517, 42389), (893, 24541), (1067, 20539), (1081, 20273), (1843, 11891), (2231, 9823), (4559, 4807)]