21549280

素因数分解:

$2^5\times 5^1\times {\mathrm{134683}}^1$

素因数の和:134698

約数の個数: 24

約数和(自身を含む): 50910552

約数和(自身を除く): 29361272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 134683, 269366, 538732, 673415, 1077464, 1346830, 2154928, 2693660, 4309856, 5387320, 10774640, 21549280]

約数ペア:

[(1, 21549280), (2, 10774640), (4, 5387320), (5, 4309856), (8, 2693660), (10, 2154928), (16, 1346830), (20, 1077464), (32, 673415), (40, 538732), (80, 269366), (160, 134683)]