21105568

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3527}}^1$

素因数の和:3565

約数の個数: 48

約数和(自身を含む): 48009024

約数和(自身を除く): 26903456

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, 3527, 5984, 7054, 14108, 28216, 38797, 56432, 59959, 77594, 112864, 119918, 155188, 239836, 310376, 479672, 620752, 659549, 959344, 1241504, 1319098, 1918688, 2638196, 5276392, 10552784, 21105568]

約数ペア:

[(1, 21105568), (2, 10552784), (4, 5276392), (8, 2638196), (11, 1918688), (16, 1319098), (17, 1241504), (22, 959344), (32, 659549), (34, 620752), (44, 479672), (68, 310376), (88, 239836), (136, 155188), (176, 119918), (187, 112864), (272, 77594), (352, 59959), (374, 56432), (544, 38797), (748, 28216), (1496, 14108), (2992, 7054), (3527, 5984)]