21331328

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{9803}}^1$

素因数の和:9834

約数の個数: 32

約数和(自身を含む): 45000360

約数和(自身を除く): 23669032

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 9803, 19606, 39212, 78424, 156848, 166651, 313696, 333302, 627392, 666604, 1254784, 1333208, 2666416, 5332832, 10665664, 21331328]

約数ペア:

[(1, 21331328), (2, 10665664), (4, 5332832), (8, 2666416), (16, 1333208), (17, 1254784), (32, 666604), (34, 627392), (64, 333302), (68, 313696), (128, 166651), (136, 156848), (272, 78424), (544, 39212), (1088, 19606), (2176, 9803)]