20512073421

素因数分解:

$3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1\times {\mathrm{2699}}^1$

素因数の和:3303

約数の個数: 64

約数和(自身を含む): 35251200000

約数和(自身を除く): 14739126579

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 189, 237, 509, 553, 711, 1527, 1659, 2133, 2699, 3563, 4581, 4977, 8097, 10689, 13743, 14931, 18893, 24291, 32067, 40211, 56679, 72873, 96201, 120633, 170037, 213221, 281477, 361899, 510111, 639663, 844431, 1085697, 1373791, 1492547, 1918989, 2533293, 4121373, 4477641, 5756967, 7599879, 9616537, 12364119, 13432923, 28849611, 37092357, 40298769, 86548833, 108529489, 259646499, 325588467, 759706423, 976765401, 2279119269, 2930296203, 6837357807, 20512073421]

約数ペア:

[(1, 20512073421), (3, 6837357807), (7, 2930296203), (9, 2279119269), (21, 976765401), (27, 759706423), (63, 325588467), (79, 259646499), (189, 108529489), (237, 86548833), (509, 40298769), (553, 37092357), (711, 28849611), (1527, 13432923), (1659, 12364119), (2133, 9616537), (2699, 7599879), (3563, 5756967), (4581, 4477641), (4977, 4121373), (8097, 2533293), (10689, 1918989), (13743, 1492547), (14931, 1373791), (18893, 1085697), (24291, 844431), (32067, 639663), (40211, 510111), (56679, 361899), (72873, 281477), (96201, 213221), (120633, 170037)]