20999556

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{34313}}^1$

素因数の和:34340

約数の個数: 36

約数和(自身を含む): 56206332

約数和(自身を除く): 35206776

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612, 34313, 68626, 102939, 137252, 205878, 308817, 411756, 583321, 617634, 1166642, 1235268, 1749963, 2333284, 3499926, 5249889, 6999852, 10499778, 20999556]

約数ペア:

[(1, 20999556), (2, 10499778), (3, 6999852), (4, 5249889), (6, 3499926), (9, 2333284), (12, 1749963), (17, 1235268), (18, 1166642), (34, 617634), (36, 583321), (51, 411756), (68, 308817), (102, 205878), (153, 137252), (204, 102939), (306, 68626), (612, 34313)]