21164703

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27239}}^1$

素因数の和:27286

約数の個数: 16

約数和(自身を含む): 33123840

約数和(自身を除く): 11959137

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27239, 81717, 190673, 572019, 1007843, 3023529, 7054901, 21164703]

約数ペア:

[(1, 21164703), (3, 7054901), (7, 3023529), (21, 1007843), (37, 572019), (111, 190673), (259, 81717), (777, 27239)]