21144775

素因数分解:

$5^2\times {\mathrm{271}}^1\times {\mathrm{3121}}^1$

素因数の和:3402

約数の個数: 12

約数和(自身を含む): 26324704

約数和(自身を除く): 5179929

約数列:

[1, 5, 25, 271, 1355, 3121, 6775, 15605, 78025, 845791, 4228955, 21144775]

約数ペア:

[(1, 21144775), (5, 4228955), (25, 845791), (271, 78025), (1355, 15605), (3121, 6775)]