20864763

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 33073920

約数和(自身を除く): 12209157

約数列:

[1, 3, 9, 17, 27, 51, 131, 153, 347, 393, 459, 1041, 1179, 2227, 3123, 3537, 5899, 6681, 9369, 17697, 20043, 45457, 53091, 60129, 136371, 159273, 409113, 772769, 1227339, 2318307, 6954921, 20864763]

約数ペア:

[(1, 20864763), (3, 6954921), (9, 2318307), (17, 1227339), (27, 772769), (51, 409113), (131, 159273), (153, 136371), (347, 60129), (393, 53091), (459, 45457), (1041, 20043), (1179, 17697), (2227, 9369), (3123, 6681), (3537, 5899)]