81267921

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 152668800

約数和(自身を除く): 71400879

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 53, 57, 61, 63, 133, 147, 159, 171, 183, 189, 371, 399, 427, 441, 477, 513, 549, 931, 1007, 1113, 1159, 1197, 1281, 1323, 1431, 1647, 2597, 2793, 2989, 3021, 3233, 3339, 3477, 3591, 3843, 7049, 7791, 8113, 8379, 8967, 9063, 9699, 10017, 10431, 11529, 21147, 22631, 23373, 24339, 25137, 26901, 27189, 29097, 31293, 49343, 56791, 61427, 63441, 67893, 70119, 73017, 80703, 87291, 148029, 158417, 170373, 184281, 190323, 203679, 219051, 429989, 444087, 475251, 511119, 552843, 611037, 1289967, 1332261, 1425753, 1533357, 1658529, 3009923, 3869901, 4277259, 9029769, 11609703, 27089307, 81267921]

約数ペア:

[(1, 81267921), (3, 27089307), (7, 11609703), (9, 9029769), (19, 4277259), (21, 3869901), (27, 3009923), (49, 1658529), (53, 1533357), (57, 1425753), (61, 1332261), (63, 1289967), (133, 611037), (147, 552843), (159, 511119), (171, 475251), (183, 444087), (189, 429989), (371, 219051), (399, 203679), (427, 190323), (441, 184281), (477, 170373), (513, 158417), (549, 148029), (931, 87291), (1007, 80703), (1113, 73017), (1159, 70119), (1197, 67893), (1281, 63441), (1323, 61427), (1431, 56791), (1647, 49343), (2597, 31293), (2793, 29097), (2989, 27189), (3021, 26901), (3233, 25137), (3339, 24339), (3477, 23373), (3591, 22631), (3843, 21147), (7049, 11529), (7791, 10431), (8113, 10017), (8379, 9699), (8967, 9063)]