21000434704

素因数分解:

$2^4\times {\mathrm{3559}}^1\times {\mathrm{368791}}^1$

素因数の和:372358

約数の個数: 20

約数和(自身を含む): 40699885120

約数和(自身を除く): 19699450416

約数列:

[1, 2, 4, 8, 16, 3559, 7118, 14236, 28472, 56944, 368791, 737582, 1475164, 2950328, 5900656, 1312527169, 2625054338, 5250108676, 10500217352, 21000434704]

約数ペア:

[(1, 21000434704), (2, 10500217352), (4, 5250108676), (8, 2625054338), (16, 1312527169), (3559, 5900656), (7118, 2950328), (14236, 1475164), (28472, 737582), (56944, 368791)]