28377419

素因数分解:

$7^4\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:304

約数の個数: 20

約数和(自身を含む): 33880896

約数和(自身を除く): 5503477

約数列:

[1, 7, 49, 53, 223, 343, 371, 1561, 2401, 2597, 10927, 11819, 18179, 76489, 82733, 127253, 535423, 579131, 4053917, 28377419]

約数ペア:

[(1, 28377419), (7, 4053917), (49, 579131), (53, 535423), (223, 127253), (343, 82733), (371, 76489), (1561, 18179), (2401, 11819), (2597, 10927)]