18989847

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{971}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 28658448

約数和(自身を除く): 9668601

約数列:

[1, 3, 9, 41, 53, 123, 159, 369, 477, 971, 2173, 2913, 6519, 8739, 19557, 39811, 51463, 119433, 154389, 358299, 463167, 2109983, 6329949, 18989847]

約数ペア:

[(1, 18989847), (3, 6329949), (9, 2109983), (41, 463167), (53, 358299), (123, 154389), (159, 119433), (369, 51463), (477, 39811), (971, 19557), (2173, 8739), (2913, 6519)]