21207636

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{11551}}^1$

素因数の和:11581

約数の個数: 48

約数和(自身を含む): 58222080

約数和(自身を除く): 37014444

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 102, 108, 153, 204, 306, 459, 612, 918, 1836, 11551, 23102, 34653, 46204, 69306, 103959, 138612, 196367, 207918, 311877, 392734, 415836, 589101, 623754, 785468, 1178202, 1247508, 1767303, 2356404, 3534606, 5301909, 7069212, 10603818, 21207636]

約数ペア:

[(1, 21207636), (2, 10603818), (3, 7069212), (4, 5301909), (6, 3534606), (9, 2356404), (12, 1767303), (17, 1247508), (18, 1178202), (27, 785468), (34, 623754), (36, 589101), (51, 415836), (54, 392734), (68, 311877), (102, 207918), (108, 196367), (153, 138612), (204, 103959), (306, 69306), (459, 46204), (612, 34653), (918, 23102), (1836, 11551)]