68271915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{15749}}^1$

素因数の和:15791

約数の個数: 24

約数和(自身を含む): 116046000

約数和(自身を除く): 47774085

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 15749, 47247, 78745, 236235, 267733, 803199, 1338665, 4015995, 4551461, 13654383, 22757305, 68271915]

約数ペア:

[(1, 68271915), (3, 22757305), (5, 13654383), (15, 4551461), (17, 4015995), (51, 1338665), (85, 803199), (255, 267733), (289, 236235), (867, 78745), (1445, 47247), (4335, 15749)]