21368864

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3571}}^1$

素因数の和:3609

約数の個数: 48

約数和(自身を含む): 48607776

約数和(自身を除く): 27238912

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3571, 5984, 7142, 14284, 28568, 39281, 57136, 60707, 78562, 114272, 121414, 157124, 242828, 314248, 485656, 628496, 667777, 971312, 1256992, 1335554, 1942624, 2671108, 5342216, 10684432, 21368864]

約数ペア:

[(1, 21368864), (2, 10684432), (4, 5342216), (8, 2671108), (11, 1942624), (16, 1335554), (17, 1256992), (22, 971312), (32, 667777), (34, 628496), (44, 485656), (68, 314248), (88, 242828), (136, 157124), (176, 121414), (187, 114272), (272, 78562), (352, 60707), (374, 57136), (544, 39281), (748, 28568), (1496, 14284), (2992, 7142), (3571, 5984)]