253684809

素因数分解:

$3^2\times 7^2\times {\mathrm{575249}}^1$

素因数の和:575269

約数の個数: 18

約数和(自身を含む): 426260250

約数和(自身を除く): 172575441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 575249, 1725747, 4026743, 5177241, 12080229, 28187201, 36240687, 84561603, 253684809]

約数ペア:

[(1, 253684809), (3, 84561603), (7, 36240687), (9, 28187201), (21, 12080229), (49, 5177241), (63, 4026743), (147, 1725747), (441, 575249)]