21891168

素因数分解:

$2^5\times 3^3\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1981

約数の個数: 96

約数和(自身を含む): 68796000

約数和(自身を除く): 46904832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 96, 104, 108, 117, 144, 156, 208, 216, 234, 288, 312, 351, 416, 432, 468, 624, 702, 864, 936, 1248, 1404, 1872, 1949, 2808, 3744, 3898, 5616, 5847, 7796, 11232, 11694, 15592, 17541, 23388, 25337, 31184, 35082, 46776, 50674, 52623, 62368, 70164, 76011, 93552, 101348, 105246, 140328, 152022, 187104, 202696, 210492, 228033, 280656, 304044, 405392, 420984, 456066, 561312, 608088, 684099, 810784, 841968, 912132, 1216176, 1368198, 1683936, 1824264, 2432352, 2736396, 3648528, 5472792, 7297056, 10945584, 21891168]

約数ペア:

[(1, 21891168), (2, 10945584), (3, 7297056), (4, 5472792), (6, 3648528), (8, 2736396), (9, 2432352), (12, 1824264), (13, 1683936), (16, 1368198), (18, 1216176), (24, 912132), (26, 841968), (27, 810784), (32, 684099), (36, 608088), (39, 561312), (48, 456066), (52, 420984), (54, 405392), (72, 304044), (78, 280656), (96, 228033), (104, 210492), (108, 202696), (117, 187104), (144, 152022), (156, 140328), (208, 105246), (216, 101348), (234, 93552), (288, 76011), (312, 70164), (351, 62368), (416, 52623), (432, 50674), (468, 46776), (624, 35082), (702, 31184), (864, 25337), (936, 23388), (1248, 17541), (1404, 15592), (1872, 11694), (1949, 11232), (2808, 7796), (3744, 5847), (3898, 5616)]