21589137

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 32508840

約数和(自身を除く): 10919703

約数列:

[1, 3, 9, 29, 87, 181, 261, 457, 543, 1371, 1629, 4113, 5249, 13253, 15747, 39759, 47241, 82717, 119277, 248151, 744453, 2398793, 7196379, 21589137]

約数ペア:

[(1, 21589137), (3, 7196379), (9, 2398793), (29, 744453), (87, 248151), (181, 119277), (261, 82717), (457, 47241), (543, 39759), (1371, 15747), (1629, 13253), (4113, 5249)]