20869812

素因数分解:

$2^2\times 3^6\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:460

約数の個数: 84

約数和(自身を含む): 58116996

約数和(自身を除く): 37247184

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 243, 306, 324, 421, 459, 486, 612, 729, 842, 918, 972, 1263, 1377, 1458, 1684, 1836, 2526, 2754, 2916, 3789, 4131, 5052, 5508, 7157, 7578, 8262, 11367, 12393, 14314, 15156, 16524, 21471, 22734, 24786, 28628, 34101, 42942, 45468, 49572, 64413, 68202, 85884, 102303, 128826, 136404, 193239, 204606, 257652, 306909, 386478, 409212, 579717, 613818, 772956, 1159434, 1227636, 1739151, 2318868, 3478302, 5217453, 6956604, 10434906, 20869812]

約数ペア:

[(1, 20869812), (2, 10434906), (3, 6956604), (4, 5217453), (6, 3478302), (9, 2318868), (12, 1739151), (17, 1227636), (18, 1159434), (27, 772956), (34, 613818), (36, 579717), (51, 409212), (54, 386478), (68, 306909), (81, 257652), (102, 204606), (108, 193239), (153, 136404), (162, 128826), (204, 102303), (243, 85884), (306, 68202), (324, 64413), (421, 49572), (459, 45468), (486, 42942), (612, 34101), (729, 28628), (842, 24786), (918, 22734), (972, 21471), (1263, 16524), (1377, 15156), (1458, 14314), (1684, 12393), (1836, 11367), (2526, 8262), (2754, 7578), (2916, 7157), (3789, 5508), (4131, 5052)]