21714219

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{409}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 33387120

約数和(自身を除く): 11672901

約数列:

[1, 3, 9, 17, 51, 153, 347, 409, 1041, 1227, 3123, 3681, 5899, 6953, 17697, 20859, 53091, 62577, 141923, 425769, 1277307, 2412691, 7238073, 21714219]

約数ペア:

[(1, 21714219), (3, 7238073), (9, 2412691), (17, 1277307), (51, 425769), (153, 141923), (347, 62577), (409, 53091), (1041, 20859), (1227, 17697), (3123, 6953), (3681, 5899)]