21919184

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:232

約数の個数: 80

約数和(自身を含む): 51806208

約数和(自身を除く): 29887024

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 67, 92, 112, 127, 134, 161, 184, 254, 268, 322, 368, 469, 508, 536, 644, 889, 938, 1016, 1072, 1288, 1541, 1778, 1876, 2032, 2576, 2921, 3082, 3556, 3752, 5842, 6164, 7112, 7504, 8509, 10787, 11684, 12328, 14224, 17018, 20447, 21574, 23368, 24656, 34036, 40894, 43148, 46736, 59563, 68072, 81788, 86296, 119126, 136144, 163576, 172592, 195707, 238252, 327152, 391414, 476504, 782828, 953008, 1369949, 1565656, 2739898, 3131312, 5479796, 10959592, 21919184]

約数ペア:

[(1, 21919184), (2, 10959592), (4, 5479796), (7, 3131312), (8, 2739898), (14, 1565656), (16, 1369949), (23, 953008), (28, 782828), (46, 476504), (56, 391414), (67, 327152), (92, 238252), (112, 195707), (127, 172592), (134, 163576), (161, 136144), (184, 119126), (254, 86296), (268, 81788), (322, 68072), (368, 59563), (469, 46736), (508, 43148), (536, 40894), (644, 34036), (889, 24656), (938, 23368), (1016, 21574), (1072, 20447), (1288, 17018), (1541, 14224), (1778, 12328), (1876, 11684), (2032, 10787), (2576, 8509), (2921, 7504), (3082, 7112), (3556, 6164), (3752, 5842)]