19585755

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 39259584

約数和(自身を除く): 19673829

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 97, 105, 291, 315, 485, 641, 679, 873, 1455, 1923, 2037, 3205, 3395, 4365, 4487, 5769, 6111, 9615, 10185, 13461, 22435, 28845, 30555, 40383, 62177, 67305, 186531, 201915, 310885, 435239, 559593, 932655, 1305717, 2176195, 2797965, 3917151, 6528585, 19585755]

約数ペア:

[(1, 19585755), (3, 6528585), (5, 3917151), (7, 2797965), (9, 2176195), (15, 1305717), (21, 932655), (35, 559593), (45, 435239), (63, 310885), (97, 201915), (105, 186531), (291, 67305), (315, 62177), (485, 40383), (641, 30555), (679, 28845), (873, 22435), (1455, 13461), (1923, 10185), (2037, 9615), (3205, 6111), (3395, 5769), (4365, 4487)]