21153616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{457}}^1$

素因数の和:739

約数の個数: 40

約数和(自身を含む): 44979264

約数和(自身を除く): 23825648

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 263, 457, 526, 914, 1052, 1828, 2104, 2893, 3656, 4208, 5027, 5786, 7312, 10054, 11572, 20108, 23144, 40216, 46288, 80432, 120191, 240382, 480764, 961528, 1322101, 1923056, 2644202, 5288404, 10576808, 21153616]

約数ペア:

[(1, 21153616), (2, 10576808), (4, 5288404), (8, 2644202), (11, 1923056), (16, 1322101), (22, 961528), (44, 480764), (88, 240382), (176, 120191), (263, 80432), (457, 46288), (526, 40216), (914, 23144), (1052, 20108), (1828, 11572), (2104, 10054), (2893, 7312), (3656, 5786), (4208, 5027)]