21028546

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19507}}^1$

素因数の和:19534

約数の個数: 24

約数和(自身を含む): 40030416

約数和(自身を除く): 19001870

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19507, 39014, 136549, 214577, 273098, 429154, 955843, 1502039, 1911686, 3004078, 10514273, 21028546]

約数ペア:

[(1, 21028546), (2, 10514273), (7, 3004078), (11, 1911686), (14, 1502039), (22, 955843), (49, 429154), (77, 273098), (98, 214577), (154, 136549), (539, 39014), (1078, 19507)]