19694774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13759306

約数列:

[1, 2, 11, 22, 43, 86, 109, 191, 218, 382, 473, 946, 1199, 2101, 2398, 4202, 4687, 8213, 9374, 16426, 20819, 41638, 51557, 90343, 103114, 180686, 229009, 458018, 895217, 1790434, 9847387, 19694774]

約数ペア:

[(1, 19694774), (2, 9847387), (11, 1790434), (22, 895217), (43, 458018), (86, 229009), (109, 180686), (191, 103114), (218, 90343), (382, 51557), (473, 41638), (946, 20819), (1199, 16426), (2101, 9374), (2398, 8213), (4202, 4687)]