21081620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150583}}^1$

素因数の和:150599

約数の個数: 24

約数和(自身を含む): 50596224

約数和(自身を除く): 29514604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150583, 301166, 602332, 752915, 1054081, 1505830, 2108162, 3011660, 4216324, 5270405, 10540810, 21081620]

約数ペア:

[(1, 21081620), (2, 10540810), (4, 5270405), (5, 4216324), (7, 3011660), (10, 2108162), (14, 1505830), (20, 1054081), (28, 752915), (35, 602332), (70, 301166), (140, 150583)]