21922238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 37632000

約数和(自身を除く): 15709762

約数列:

[1, 2, 13, 19, 26, 38, 199, 223, 247, 398, 446, 494, 2587, 2899, 3781, 4237, 5174, 5798, 7562, 8474, 44377, 49153, 55081, 88754, 98306, 110162, 576901, 843163, 1153802, 1686326, 10961119, 21922238]

約数ペア:

[(1, 21922238), (2, 10961119), (13, 1686326), (19, 1153802), (26, 843163), (38, 576901), (199, 110162), (223, 98306), (247, 88754), (398, 55081), (446, 49153), (494, 44377), (2587, 8474), (2899, 7562), (3781, 5798), (4237, 5174)]