19785416

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2969}}^1$

素因数の和:3006

約数の個数: 48

約数和(自身を含む): 45708300

約数和(自身を除く): 25922884

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 2969, 3332, 5938, 6664, 11876, 20783, 23752, 41566, 50473, 83132, 100946, 145481, 166264, 201892, 290962, 353311, 403784, 581924, 706622, 1163848, 1413244, 2473177, 2826488, 4946354, 9892708, 19785416]

約数ペア:

[(1, 19785416), (2, 9892708), (4, 4946354), (7, 2826488), (8, 2473177), (14, 1413244), (17, 1163848), (28, 706622), (34, 581924), (49, 403784), (56, 353311), (68, 290962), (98, 201892), (119, 166264), (136, 145481), (196, 100946), (238, 83132), (392, 50473), (476, 41566), (833, 23752), (952, 20783), (1666, 11876), (2969, 6664), (3332, 5938)]