21825025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{577}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 29027160

約数和(自身を除く): 7202135

約数列:

[1, 5, 17, 25, 85, 89, 425, 445, 577, 1513, 2225, 2885, 7565, 9809, 14425, 37825, 49045, 51353, 245225, 256765, 873001, 1283825, 4365005, 21825025]

約数ペア:

[(1, 21825025), (5, 4365005), (17, 1283825), (25, 873001), (85, 256765), (89, 245225), (425, 51353), (445, 49045), (577, 37825), (1513, 14425), (2225, 9809), (2885, 7565)]