19887098

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 39640320

約数和(自身を除く): 19753222

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 61, 73, 77, 122, 146, 154, 203, 319, 406, 427, 511, 638, 671, 803, 854, 1022, 1342, 1606, 1769, 2117, 2233, 3538, 4234, 4453, 4466, 4697, 5621, 8906, 9394, 11242, 12383, 14819, 19459, 23287, 24766, 29638, 31171, 38918, 46574, 48983, 62342, 97966, 129137, 136213, 163009, 258274, 272426, 326018, 342881, 685762, 903959, 1420507, 1807918, 2841014, 9943549, 19887098]

約数ペア:

[(1, 19887098), (2, 9943549), (7, 2841014), (11, 1807918), (14, 1420507), (22, 903959), (29, 685762), (58, 342881), (61, 326018), (73, 272426), (77, 258274), (122, 163009), (146, 136213), (154, 129137), (203, 97966), (319, 62342), (406, 48983), (427, 46574), (511, 38918), (638, 31171), (671, 29638), (803, 24766), (854, 23287), (1022, 19459), (1342, 14819), (1606, 12383), (1769, 11242), (2117, 9394), (2233, 8906), (3538, 5621), (4234, 4697), (4453, 4466)]