19916344

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 46313640

約数和(自身を除く): 26397296

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 47, 49, 56, 92, 94, 98, 161, 184, 188, 196, 322, 329, 376, 392, 644, 658, 1081, 1127, 1288, 1316, 2162, 2209, 2254, 2303, 2632, 4324, 4418, 4508, 4606, 7567, 8648, 8836, 9016, 9212, 15134, 15463, 17672, 18424, 30268, 30926, 50807, 52969, 60536, 61852, 101614, 105938, 108241, 123704, 203228, 211876, 216482, 355649, 406456, 423752, 432964, 711298, 865928, 1422596, 2489543, 2845192, 4979086, 9958172, 19916344]

約数ペア:

[(1, 19916344), (2, 9958172), (4, 4979086), (7, 2845192), (8, 2489543), (14, 1422596), (23, 865928), (28, 711298), (46, 432964), (47, 423752), (49, 406456), (56, 355649), (92, 216482), (94, 211876), (98, 203228), (161, 123704), (184, 108241), (188, 105938), (196, 101614), (322, 61852), (329, 60536), (376, 52969), (392, 50807), (644, 30926), (658, 30268), (1081, 18424), (1127, 17672), (1288, 15463), (1316, 15134), (2162, 9212), (2209, 9016), (2254, 8836), (2303, 8648), (2632, 7567), (4324, 4606), (4418, 4508)]