21628275

素因数分解:

$3^1\times 5^2\times {\mathrm{283}}^1\times {\mathrm{1019}}^1$

素因数の和:1315

約数の個数: 24

約数和(自身を含む): 35920320

約数和(自身を除く): 14292045

約数列:

[1, 3, 5, 15, 25, 75, 283, 849, 1019, 1415, 3057, 4245, 5095, 7075, 15285, 21225, 25475, 76425, 288377, 865131, 1441885, 4325655, 7209425, 21628275]

約数ペア:

[(1, 21628275), (3, 7209425), (5, 4325655), (15, 1441885), (25, 865131), (75, 288377), (283, 76425), (849, 25475), (1019, 21225), (1415, 15285), (3057, 7075), (4245, 5095)]