21015476

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2003}}^1$

素因数の和:2111

約数の個数: 24

約数和(自身を含む): 38268384

約数和(自身を除く): 17252908

約数列:

[1, 2, 4, 43, 61, 86, 122, 172, 244, 2003, 2623, 4006, 5246, 8012, 10492, 86129, 122183, 172258, 244366, 344516, 488732, 5253869, 10507738, 21015476]

約数ペア:

[(1, 21015476), (2, 10507738), (4, 5253869), (43, 488732), (61, 344516), (86, 244366), (122, 172258), (172, 122183), (244, 86129), (2003, 10492), (2623, 8012), (4006, 5246)]