20608149

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 29942784

約数和(自身を除く): 9334635

約数列:

[1, 3, 31, 37, 53, 93, 111, 113, 159, 339, 1147, 1643, 1961, 3441, 3503, 4181, 4929, 5883, 5989, 10509, 12543, 17967, 60791, 129611, 182373, 185659, 221593, 388833, 556977, 664779, 6869383, 20608149]

約数ペア:

[(1, 20608149), (3, 6869383), (31, 664779), (37, 556977), (53, 388833), (93, 221593), (111, 185659), (113, 182373), (159, 129611), (339, 60791), (1147, 17967), (1643, 12543), (1961, 10509), (3441, 5989), (3503, 5883), (4181, 4929)]