21807243

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6197}}^1$

素因数の和:6243

約数の個数: 24

約数和(自身を含む): 34807968

約数和(自身を除く): 13000725

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 6197, 18591, 55773, 105349, 142531, 316047, 427593, 948141, 1282779, 2423027, 7269081, 21807243]

約数ペア:

[(1, 21807243), (3, 7269081), (9, 2423027), (17, 1282779), (23, 948141), (51, 427593), (69, 316047), (153, 142531), (207, 105349), (391, 55773), (1173, 18591), (3519, 6197)]