21017423

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1097}}^1$

素因数の和:1151

約数の個数: 24

約数和(自身を含む): 27037152

約数和(自身を除く): 6019729

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1097, 1127, 2737, 7679, 18649, 19159, 25231, 53753, 130543, 176617, 428927, 913801, 1236319, 3002489, 21017423]

約数ペア:

[(1, 21017423), (7, 3002489), (17, 1236319), (23, 913801), (49, 428927), (119, 176617), (161, 130543), (391, 53753), (833, 25231), (1097, 19159), (1127, 18649), (2737, 7679)]