30981915

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9697}}^1$

素因数の和:9779

約数の個数: 24

約数和(自身を含む): 54463968

約数和(自身を除く): 23482053

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 9697, 29091, 48485, 87273, 145455, 436365, 688487, 2065461, 3442435, 6196383, 10327305, 30981915]

約数ペア:

[(1, 30981915), (3, 10327305), (5, 6196383), (9, 3442435), (15, 2065461), (45, 688487), (71, 436365), (213, 145455), (355, 87273), (639, 48485), (1065, 29091), (3195, 9697)]