21090482

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 39213720

約数和(自身を除く): 18123238

約数列:

[1, 2, 7, 14, 29, 41, 49, 58, 82, 98, 181, 203, 287, 362, 406, 574, 1189, 1267, 1421, 2009, 2378, 2534, 2842, 4018, 5249, 7421, 8323, 8869, 10498, 14842, 16646, 17738, 36743, 51947, 58261, 73486, 103894, 116522, 215209, 257201, 363629, 430418, 514402, 727258, 1506463, 3012926, 10545241, 21090482]

約数ペア:

[(1, 21090482), (2, 10545241), (7, 3012926), (14, 1506463), (29, 727258), (41, 514402), (49, 430418), (58, 363629), (82, 257201), (98, 215209), (181, 116522), (203, 103894), (287, 73486), (362, 58261), (406, 51947), (574, 36743), (1189, 17738), (1267, 16646), (1421, 14842), (2009, 10498), (2378, 8869), (2534, 8323), (2842, 7421), (4018, 5249)]