20868675

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{3919}}^1$

素因数の和:4003

約数の個数: 24

約数和(自身を含む): 34997760

約数和(自身を除く): 14129085

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 3919, 5325, 11757, 19595, 58785, 97975, 278249, 293925, 834747, 1391245, 4173735, 6956225, 20868675]

約数ペア:

[(1, 20868675), (3, 6956225), (5, 4173735), (15, 1391245), (25, 834747), (71, 293925), (75, 278249), (213, 97975), (355, 58785), (1065, 19595), (1775, 11757), (3919, 5325)]