209220249

素因数分解:

$3^1\times 7^2\times {\mathrm{827}}^1\times {\mathrm{1721}}^1$

素因数の和:2565

約数の個数: 24

約数和(自身を含む): 325086048

約数和(自身を除く): 115865799

約数列:

[1, 3, 7, 21, 49, 147, 827, 1721, 2481, 5163, 5789, 12047, 17367, 36141, 40523, 84329, 121569, 252987, 1423267, 4269801, 9962869, 29888607, 69740083, 209220249]

約数ペア:

[(1, 209220249), (3, 69740083), (7, 29888607), (21, 9962869), (49, 4269801), (147, 1423267), (827, 252987), (1721, 121569), (2481, 84329), (5163, 40523), (5789, 36141), (12047, 17367)]