20971566

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15131}}^1$

素因数の和:15157

約数の個数: 48

約数和(自身を含む): 56654208

約数和(自身を除く): 35682642

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15131, 30262, 45393, 90786, 105917, 136179, 166441, 211834, 272358, 317751, 332882, 499323, 635502, 953253, 998646, 1165087, 1497969, 1906506, 2330174, 2995938, 3495261, 6990522, 10485783, 20971566]

約数ペア:

[(1, 20971566), (2, 10485783), (3, 6990522), (6, 3495261), (7, 2995938), (9, 2330174), (11, 1906506), (14, 1497969), (18, 1165087), (21, 998646), (22, 953253), (33, 635502), (42, 499323), (63, 332882), (66, 317751), (77, 272358), (99, 211834), (126, 166441), (154, 136179), (198, 105917), (231, 90786), (462, 45393), (693, 30262), (1386, 15131)]