21850598

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 22386202

約数列:

[1, 2, 7, 11, 14, 22, 23, 31, 46, 62, 77, 154, 161, 199, 217, 253, 322, 341, 398, 434, 506, 682, 713, 1393, 1426, 1771, 2189, 2387, 2786, 3542, 4378, 4577, 4774, 4991, 6169, 7843, 9154, 9982, 12338, 15323, 15686, 30646, 32039, 43183, 50347, 54901, 64078, 67859, 86366, 100694, 109802, 135718, 141887, 283774, 352429, 475013, 704858, 950026, 993209, 1560757, 1986418, 3121514, 10925299, 21850598]

約数ペア:

[(1, 21850598), (2, 10925299), (7, 3121514), (11, 1986418), (14, 1560757), (22, 993209), (23, 950026), (31, 704858), (46, 475013), (62, 352429), (77, 283774), (154, 141887), (161, 135718), (199, 109802), (217, 100694), (253, 86366), (322, 67859), (341, 64078), (398, 54901), (434, 50347), (506, 43183), (682, 32039), (713, 30646), (1393, 15686), (1426, 15323), (1771, 12338), (2189, 9982), (2387, 9154), (2786, 7843), (3542, 6169), (4378, 4991), (4577, 4774)]