21394908

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:344

約数の個数: 96

約数和(自身を含む): 60318720

約数和(自身を除く): 38923812

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 43, 51, 54, 68, 86, 102, 108, 129, 153, 172, 204, 258, 271, 306, 387, 459, 516, 542, 612, 731, 774, 813, 918, 1084, 1161, 1462, 1548, 1626, 1836, 2193, 2322, 2439, 2924, 3252, 4386, 4607, 4644, 4878, 6579, 7317, 8772, 9214, 9756, 11653, 13158, 13821, 14634, 18428, 19737, 23306, 26316, 27642, 29268, 34959, 39474, 41463, 46612, 55284, 69918, 78948, 82926, 104877, 124389, 139836, 165852, 198101, 209754, 248778, 314631, 396202, 419508, 497556, 594303, 629262, 792404, 1188606, 1258524, 1782909, 2377212, 3565818, 5348727, 7131636, 10697454, 21394908]

約数ペア:

[(1, 21394908), (2, 10697454), (3, 7131636), (4, 5348727), (6, 3565818), (9, 2377212), (12, 1782909), (17, 1258524), (18, 1188606), (27, 792404), (34, 629262), (36, 594303), (43, 497556), (51, 419508), (54, 396202), (68, 314631), (86, 248778), (102, 209754), (108, 198101), (129, 165852), (153, 139836), (172, 124389), (204, 104877), (258, 82926), (271, 78948), (306, 69918), (387, 55284), (459, 46612), (516, 41463), (542, 39474), (612, 34959), (731, 29268), (774, 27642), (813, 26316), (918, 23306), (1084, 19737), (1161, 18428), (1462, 14634), (1548, 13821), (1626, 13158), (1836, 11653), (2193, 9756), (2322, 9214), (2439, 8772), (2924, 7317), (3252, 6579), (4386, 4878), (4607, 4644)]