21678045

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 35900928

約数和(自身を除く): 14222883

約数列:

[1, 3, 5, 15, 47, 97, 141, 235, 291, 317, 485, 705, 951, 1455, 1585, 4559, 4755, 13677, 14899, 22795, 30749, 44697, 68385, 74495, 92247, 153745, 223485, 461235, 1445203, 4335609, 7226015, 21678045]

約数ペア:

[(1, 21678045), (3, 7226015), (5, 4335609), (15, 1445203), (47, 461235), (97, 223485), (141, 153745), (235, 92247), (291, 74495), (317, 68385), (485, 44697), (705, 30749), (951, 22795), (1455, 14899), (1585, 13677), (4559, 4755)]