19707116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 21274132

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 131, 143, 262, 263, 286, 524, 526, 572, 1052, 1441, 1703, 2882, 2893, 3406, 3419, 5764, 5786, 6812, 6838, 11572, 13676, 18733, 34453, 37466, 37609, 68906, 74932, 75218, 137812, 150436, 378983, 447889, 757966, 895778, 1515932, 1791556, 4926779, 9853558, 19707116]

約数ペア:

[(1, 19707116), (2, 9853558), (4, 4926779), (11, 1791556), (13, 1515932), (22, 895778), (26, 757966), (44, 447889), (52, 378983), (131, 150436), (143, 137812), (262, 75218), (263, 74932), (286, 68906), (524, 37609), (526, 37466), (572, 34453), (1052, 18733), (1441, 13676), (1703, 11572), (2882, 6838), (2893, 6812), (3406, 5786), (3419, 5764)]