1921975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 2700720

約数和(自身を除く): 778745

約数列:

[1, 5, 11, 25, 29, 55, 145, 241, 275, 319, 725, 1205, 1595, 2651, 6025, 6989, 7975, 13255, 34945, 66275, 76879, 174725, 384395, 1921975]

約数ペア:

[(1, 1921975), (5, 384395), (11, 174725), (25, 76879), (29, 66275), (55, 34945), (145, 13255), (241, 7975), (275, 6989), (319, 6025), (725, 2651), (1205, 1595)]