21249184

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 49968576

約数和(自身を除く): 28719392

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 53, 67, 68, 88, 106, 134, 136, 176, 187, 212, 268, 272, 352, 374, 424, 536, 544, 583, 737, 748, 848, 901, 1072, 1139, 1166, 1474, 1496, 1696, 1802, 2144, 2278, 2332, 2948, 2992, 3551, 3604, 4556, 4664, 5896, 5984, 7102, 7208, 9112, 9328, 9911, 11792, 12529, 14204, 14416, 18224, 18656, 19822, 23584, 25058, 28408, 28832, 36448, 39061, 39644, 50116, 56816, 60367, 78122, 79288, 100232, 113632, 120734, 156244, 158576, 200464, 241468, 312488, 317152, 400928, 482936, 624976, 664037, 965872, 1249952, 1328074, 1931744, 2656148, 5312296, 10624592, 21249184]

約数ペア:

[(1, 21249184), (2, 10624592), (4, 5312296), (8, 2656148), (11, 1931744), (16, 1328074), (17, 1249952), (22, 965872), (32, 664037), (34, 624976), (44, 482936), (53, 400928), (67, 317152), (68, 312488), (88, 241468), (106, 200464), (134, 158576), (136, 156244), (176, 120734), (187, 113632), (212, 100232), (268, 79288), (272, 78122), (352, 60367), (374, 56816), (424, 50116), (536, 39644), (544, 39061), (583, 36448), (737, 28832), (748, 28408), (848, 25058), (901, 23584), (1072, 19822), (1139, 18656), (1166, 18224), (1474, 14416), (1496, 14204), (1696, 12529), (1802, 11792), (2144, 9911), (2278, 9328), (2332, 9112), (2948, 7208), (2992, 7102), (3551, 5984), (3604, 5896), (4556, 4664)]