21198958

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{251}}^1\times {\mathrm{349}}^1$

素因数の和:624

約数の個数: 24

約数和(自身を含む): 35191800

約数和(自身を除く): 13992842

約数列:

[1, 2, 11, 22, 121, 242, 251, 349, 502, 698, 2761, 3839, 5522, 7678, 30371, 42229, 60742, 84458, 87599, 175198, 963589, 1927178, 10599479, 21198958]

約数ペア:

[(1, 21198958), (2, 10599479), (11, 1927178), (22, 963589), (121, 175198), (242, 87599), (251, 84458), (349, 60742), (502, 42229), (698, 30371), (2761, 7678), (3839, 5522)]