217227645

素因数分解:

$3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{21647}}^1$

素因数の和:21881

約数の個数: 24

約数和(自身を含む): 378233856

約数和(自身を除く): 161006211

約数列:

[1, 3, 5, 9, 15, 45, 223, 669, 1115, 2007, 3345, 10035, 21647, 64941, 108235, 194823, 324705, 974115, 4827281, 14481843, 24136405, 43445529, 72409215, 217227645]

約数ペア:

[(1, 217227645), (3, 72409215), (5, 43445529), (9, 24136405), (15, 14481843), (45, 4827281), (223, 974115), (669, 324705), (1115, 194823), (2007, 108235), (3345, 64941), (10035, 21647)]