18973827

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 29023488

約数和(自身を除く): 10049661

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1291, 1633, 3873, 4899, 11619, 14697, 29693, 89079, 91661, 267237, 274983, 824949, 2108203, 6324609, 18973827]

約数ペア:

[(1, 18973827), (3, 6324609), (9, 2108203), (23, 824949), (69, 274983), (71, 267237), (207, 91661), (213, 89079), (639, 29693), (1291, 14697), (1633, 11619), (3873, 4899)]