221661284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137507}}^1$

素因数の和:137555

約数の個数: 24

約数和(自身を含む): 431225088

約数和(自身を除く): 209563804

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 137507, 275014, 550028, 1787591, 3575182, 4262717, 7150364, 8525434, 17050868, 55415321, 110830642, 221661284]

約数ペア:

[(1, 221661284), (2, 110830642), (4, 55415321), (13, 17050868), (26, 8525434), (31, 7150364), (52, 4262717), (62, 3575182), (124, 1787591), (403, 550028), (806, 275014), (1612, 137507)]