19785892

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 42311808

約数和(自身を除く): 22525916

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 197, 211, 238, 394, 422, 476, 788, 844, 1379, 1477, 2758, 2954, 3349, 3587, 5516, 5908, 6698, 7174, 13396, 14348, 23443, 25109, 41567, 46886, 50218, 83134, 93772, 100436, 166268, 290969, 581938, 706639, 1163876, 1413278, 2826556, 4946473, 9892946, 19785892]

約数ペア:

[(1, 19785892), (2, 9892946), (4, 4946473), (7, 2826556), (14, 1413278), (17, 1163876), (28, 706639), (34, 581938), (68, 290969), (119, 166268), (197, 100436), (211, 93772), (238, 83134), (394, 50218), (422, 46886), (476, 41567), (788, 25109), (844, 23443), (1379, 14348), (1477, 13396), (2758, 7174), (2954, 6698), (3349, 5908), (3587, 5516)]