21956858

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{6199}}^1$

素因数の和:6242

約数の個数: 32

約数和(自身を含む): 42854400

約数和(自身を除く): 20897542

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 253, 322, 506, 1771, 3542, 6199, 12398, 43393, 68189, 86786, 136378, 142577, 285154, 477323, 954646, 998039, 1568347, 1996078, 3136694, 10978429, 21956858]

約数ペア:

[(1, 21956858), (2, 10978429), (7, 3136694), (11, 1996078), (14, 1568347), (22, 998039), (23, 954646), (46, 477323), (77, 285154), (154, 142577), (161, 136378), (253, 86786), (322, 68189), (506, 43393), (1771, 12398), (3542, 6199)]