20958025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4483}}^1$

素因数の和:4521

約数の個数: 24

約数和(自身を含む): 30024864

約数和(自身を除く): 9066839

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4483, 4675, 22415, 49313, 76211, 112075, 246565, 381055, 838321, 1232825, 1905275, 4191605, 20958025]

約数ペア:

[(1, 20958025), (5, 4191605), (11, 1905275), (17, 1232825), (25, 838321), (55, 381055), (85, 246565), (187, 112075), (275, 76211), (425, 49313), (935, 22415), (4483, 4675)]