161720139

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{10093}}^1$

素因数の和:10219

約数の個数: 24

約数和(自身を含む): 253157520

約数和(自身を除く): 91437381

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 2289, 5341, 10093, 16023, 30279, 70651, 211953, 494557, 1100137, 1483671, 3300411, 7700959, 23102877, 53906713, 161720139]

約数ペア:

[(1, 161720139), (3, 53906713), (7, 23102877), (21, 7700959), (49, 3300411), (109, 1483671), (147, 1100137), (327, 494557), (763, 211953), (2289, 70651), (5341, 30279), (10093, 16023)]