21357195

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1693}}^1$

素因数の和:1759

約数の個数: 24

約数和(自身を含む): 35411376

約数和(自身を除く): 14054181

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 841, 1693, 2523, 4205, 5079, 8465, 12615, 25395, 49097, 147291, 245485, 736455, 1423813, 4271439, 7119065, 21357195]

約数ペア:

[(1, 21357195), (3, 7119065), (5, 4271439), (15, 1423813), (29, 736455), (87, 245485), (145, 147291), (435, 49097), (841, 25395), (1693, 12615), (2523, 8465), (4205, 5079)]