21387326

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 35640000

約数和(自身を除く): 14252674

約数列:

[1, 2, 17, 29, 34, 58, 109, 199, 218, 398, 493, 986, 1853, 3161, 3383, 3706, 5771, 6322, 6766, 11542, 21691, 43382, 53737, 98107, 107474, 196214, 368747, 629039, 737494, 1258078, 10693663, 21387326]

約数ペア:

[(1, 21387326), (2, 10693663), (17, 1258078), (29, 737494), (34, 629039), (58, 368747), (109, 196214), (199, 107474), (218, 98107), (398, 53737), (493, 43382), (986, 21691), (1853, 11542), (3161, 6766), (3383, 6322), (3706, 5771)]