20042451

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 16245549

約数列:

[1, 3, 9, 11, 13, 27, 29, 33, 39, 87, 99, 117, 143, 179, 261, 297, 319, 351, 377, 429, 537, 783, 957, 1131, 1287, 1611, 1969, 2327, 2871, 3393, 3861, 4147, 4833, 5191, 5907, 6981, 8613, 10179, 12441, 15573, 17721, 20943, 25597, 37323, 46719, 53163, 57101, 62829, 67483, 76791, 111969, 140157, 171303, 202449, 230373, 513909, 607347, 691119, 742313, 1541727, 1822041, 2226939, 6680817, 20042451]

約数ペア:

[(1, 20042451), (3, 6680817), (9, 2226939), (11, 1822041), (13, 1541727), (27, 742313), (29, 691119), (33, 607347), (39, 513909), (87, 230373), (99, 202449), (117, 171303), (143, 140157), (179, 111969), (261, 76791), (297, 67483), (319, 62829), (351, 57101), (377, 53163), (429, 46719), (537, 37323), (783, 25597), (957, 20943), (1131, 17721), (1287, 15573), (1611, 12441), (1969, 10179), (2327, 8613), (2871, 6981), (3393, 5907), (3861, 5191), (4147, 4833)]