20618895

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6577}}^1$

素因数の和:6615

約数の個数: 32

約数和(自身を含む): 37889280

約数和(自身を除く): 17270385

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6577, 19731, 32885, 72347, 98655, 124963, 217041, 361735, 374889, 624815, 1085205, 1374593, 1874445, 4123779, 6872965, 20618895]

約数ペア:

[(1, 20618895), (3, 6872965), (5, 4123779), (11, 1874445), (15, 1374593), (19, 1085205), (33, 624815), (55, 374889), (57, 361735), (95, 217041), (165, 124963), (209, 98655), (285, 72347), (627, 32885), (1045, 19731), (3135, 6577)]