21454275

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6977}}^1$

素因数の和:7031

約数の個数: 24

約数和(自身を含む): 36341424

約数和(自身を除く): 14887149

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6977, 20931, 34885, 104655, 174425, 286057, 523275, 858171, 1430285, 4290855, 7151425, 21454275]

約数ペア:

[(1, 21454275), (3, 7151425), (5, 4290855), (15, 1430285), (25, 858171), (41, 523275), (75, 286057), (123, 174425), (205, 104655), (615, 34885), (1025, 20931), (3075, 6977)]