21294931

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1201}}^1$

素因数の和:1374

約数の個数: 16

約数和(自身を含む): 25963200

約数和(自身を除く): 4668269

約数列:

[1, 7, 17, 119, 149, 1043, 1201, 2533, 8407, 17731, 20417, 142919, 178949, 1252643, 3042133, 21294931]

約数ペア:

[(1, 21294931), (7, 3042133), (17, 1252643), (119, 178949), (149, 142919), (1043, 20417), (1201, 17731), (2533, 8407)]