21365136

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:241

約数の個数: 120

約数和(自身を含む): 65605176

約数和(自身を除く): 44240040

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 101, 104, 113, 117, 144, 156, 202, 208, 226, 234, 303, 312, 339, 404, 452, 468, 606, 624, 678, 808, 904, 909, 936, 1017, 1212, 1313, 1356, 1469, 1616, 1808, 1818, 1872, 2034, 2424, 2626, 2712, 2938, 3636, 3939, 4068, 4407, 4848, 5252, 5424, 5876, 7272, 7878, 8136, 8814, 10504, 11413, 11752, 11817, 13221, 14544, 15756, 16272, 17628, 21008, 22826, 23504, 23634, 26442, 31512, 34239, 35256, 45652, 47268, 52884, 63024, 68478, 70512, 91304, 94536, 102717, 105768, 136956, 148369, 182608, 189072, 205434, 211536, 273912, 296738, 410868, 445107, 547824, 593476, 821736, 890214, 1186952, 1335321, 1643472, 1780428, 2373904, 2670642, 3560856, 5341284, 7121712, 10682568, 21365136]

約数ペア:

[(1, 21365136), (2, 10682568), (3, 7121712), (4, 5341284), (6, 3560856), (8, 2670642), (9, 2373904), (12, 1780428), (13, 1643472), (16, 1335321), (18, 1186952), (24, 890214), (26, 821736), (36, 593476), (39, 547824), (48, 445107), (52, 410868), (72, 296738), (78, 273912), (101, 211536), (104, 205434), (113, 189072), (117, 182608), (144, 148369), (156, 136956), (202, 105768), (208, 102717), (226, 94536), (234, 91304), (303, 70512), (312, 68478), (339, 63024), (404, 52884), (452, 47268), (468, 45652), (606, 35256), (624, 34239), (678, 31512), (808, 26442), (904, 23634), (909, 23504), (936, 22826), (1017, 21008), (1212, 17628), (1313, 16272), (1356, 15756), (1469, 14544), (1616, 13221), (1808, 11817), (1818, 11752), (1872, 11413), (2034, 10504), (2424, 8814), (2626, 8136), (2712, 7878), (2938, 7272), (3636, 5876), (3939, 5424), (4068, 5252), (4407, 4848)]