21571198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 37736928

約数和(自身を除く): 16165730

約数列:

[1, 2, 11, 17, 22, 34, 137, 187, 274, 374, 421, 842, 1507, 2329, 3014, 4631, 4658, 7157, 9262, 14314, 25619, 51238, 57677, 78727, 115354, 157454, 634447, 980509, 1268894, 1961018, 10785599, 21571198]

約数ペア:

[(1, 21571198), (2, 10785599), (11, 1961018), (17, 1268894), (22, 980509), (34, 634447), (137, 157454), (187, 115354), (274, 78727), (374, 57677), (421, 51238), (842, 25619), (1507, 14314), (2329, 9262), (3014, 7157), (4631, 4658)]