21888670

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 40715136

約数和(自身を除く): 18826466

約数列:

[1, 2, 5, 10, 41, 82, 197, 205, 271, 394, 410, 542, 985, 1355, 1970, 2710, 8077, 11111, 16154, 22222, 40385, 53387, 55555, 80770, 106774, 111110, 266935, 533870, 2188867, 4377734, 10944335, 21888670]

約数ペア:

[(1, 21888670), (2, 10944335), (5, 4377734), (10, 2188867), (41, 533870), (82, 266935), (197, 111110), (205, 106774), (271, 80770), (394, 55555), (410, 53387), (542, 40385), (985, 22222), (1355, 16154), (1970, 11111), (2710, 8077)]