21000547712

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{9650987}}^1$

素因数の和:9651018

約数の個数: 32

約数和(自身を含む): 44298034920

約数和(自身を除く): 23297487208

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 9650987, 19301974, 38603948, 77207896, 154415792, 164066779, 308831584, 328133558, 617663168, 656267116, 1235326336, 1312534232, 2625068464, 5250136928, 10500273856, 21000547712]

約数ペア:

[(1, 21000547712), (2, 10500273856), (4, 5250136928), (8, 2625068464), (16, 1312534232), (17, 1235326336), (32, 656267116), (34, 617663168), (64, 328133558), (68, 308831584), (128, 164066779), (136, 154415792), (272, 77207896), (544, 38603948), (1088, 19301974), (2176, 9650987)]