21510423

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12781}}^1$

素因数の和:12815

約数の個数: 24

約数和(自身を含む): 35891856

約数和(自身を除く): 14381433

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12781, 38343, 115029, 140591, 217277, 421773, 651831, 1265319, 1955493, 2390047, 7170141, 21510423]

約数ペア:

[(1, 21510423), (3, 7170141), (9, 2390047), (11, 1955493), (17, 1265319), (33, 651831), (51, 421773), (99, 217277), (153, 140591), (187, 115029), (561, 38343), (1683, 12781)]