21092425

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 27676800

約数和(自身を除く): 6584375

約数列:

[1, 5, 25, 29, 47, 145, 235, 619, 725, 1175, 1363, 3095, 6815, 15475, 17951, 29093, 34075, 89755, 145465, 448775, 727325, 843697, 4218485, 21092425]

約数ペア:

[(1, 21092425), (5, 4218485), (25, 843697), (29, 727325), (47, 448775), (145, 145465), (235, 89755), (619, 34075), (725, 29093), (1175, 17951), (1363, 15475), (3095, 6815)]