138833779

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 174325760

約数和(自身を除く): 35491981

約数列:

[1, 7, 19, 31, 133, 151, 217, 223, 589, 1057, 1561, 2869, 4123, 4237, 4681, 6913, 20083, 29659, 32767, 33673, 48391, 88939, 131347, 235711, 622573, 639787, 919429, 1043863, 4478509, 7307041, 19833397, 138833779]

約数ペア:

[(1, 138833779), (7, 19833397), (19, 7307041), (31, 4478509), (133, 1043863), (151, 919429), (217, 639787), (223, 622573), (589, 235711), (1057, 131347), (1561, 88939), (2869, 48391), (4123, 33673), (4237, 32767), (4681, 29659), (6913, 20083)]