21506328

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 62400000

約数和(自身を除く): 40893672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 79, 114, 152, 158, 171, 199, 228, 237, 316, 342, 398, 456, 474, 597, 632, 684, 711, 796, 948, 1194, 1368, 1422, 1501, 1592, 1791, 1896, 2388, 2844, 3002, 3582, 3781, 4503, 4776, 5688, 6004, 7164, 7562, 9006, 11343, 12008, 13509, 14328, 15124, 15721, 18012, 22686, 27018, 30248, 31442, 34029, 36024, 45372, 47163, 54036, 62884, 68058, 90744, 94326, 108072, 125768, 136116, 141489, 188652, 272232, 282978, 298699, 377304, 565956, 597398, 896097, 1131912, 1194796, 1792194, 2389592, 2688291, 3584388, 5376582, 7168776, 10753164, 21506328]

約数ペア:

[(1, 21506328), (2, 10753164), (3, 7168776), (4, 5376582), (6, 3584388), (8, 2688291), (9, 2389592), (12, 1792194), (18, 1194796), (19, 1131912), (24, 896097), (36, 597398), (38, 565956), (57, 377304), (72, 298699), (76, 282978), (79, 272232), (114, 188652), (152, 141489), (158, 136116), (171, 125768), (199, 108072), (228, 94326), (237, 90744), (316, 68058), (342, 62884), (398, 54036), (456, 47163), (474, 45372), (597, 36024), (632, 34029), (684, 31442), (711, 30248), (796, 27018), (948, 22686), (1194, 18012), (1368, 15721), (1422, 15124), (1501, 14328), (1592, 13509), (1791, 12008), (1896, 11343), (2388, 9006), (2844, 7562), (3002, 7164), (3582, 6004), (3781, 5688), (4503, 4776)]