21965045

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 28565856

約数和(自身を除く): 6600811

約数列:

[1, 5, 19, 43, 95, 215, 283, 361, 817, 1415, 1805, 4085, 5377, 12169, 15523, 26885, 60845, 77615, 102163, 231211, 510815, 1156055, 4393009, 21965045]

約数ペア:

[(1, 21965045), (5, 4393009), (19, 1156055), (43, 510815), (95, 231211), (215, 102163), (283, 77615), (361, 60845), (817, 26885), (1415, 15523), (1805, 12169), (4085, 5377)]