21165816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7411}}^1$

素因数の和:7444

約数の個数: 64

約数和(自身を含む): 64039680

約数和(自身を除く): 42873864

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428, 2856, 7411, 14822, 22233, 29644, 44466, 51877, 59288, 88932, 103754, 125987, 155631, 177864, 207508, 251974, 311262, 377961, 415016, 503948, 622524, 755922, 881909, 1007896, 1245048, 1511844, 1763818, 2645727, 3023688, 3527636, 5291454, 7055272, 10582908, 21165816]

約数ペア:

[(1, 21165816), (2, 10582908), (3, 7055272), (4, 5291454), (6, 3527636), (7, 3023688), (8, 2645727), (12, 1763818), (14, 1511844), (17, 1245048), (21, 1007896), (24, 881909), (28, 755922), (34, 622524), (42, 503948), (51, 415016), (56, 377961), (68, 311262), (84, 251974), (102, 207508), (119, 177864), (136, 155631), (168, 125987), (204, 103754), (238, 88932), (357, 59288), (408, 51877), (476, 44466), (714, 29644), (952, 22233), (1428, 14822), (2856, 7411)]