19966232

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 45480960

約数和(自身を除く): 25514728

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 248, 286, 341, 403, 563, 572, 682, 806, 1126, 1144, 1364, 1612, 2252, 2728, 3224, 4433, 4504, 6193, 7319, 8866, 12386, 14638, 17453, 17732, 24772, 29276, 34906, 35464, 49544, 58552, 69812, 80509, 139624, 161018, 191983, 226889, 322036, 383966, 453778, 644072, 767932, 907556, 1535864, 1815112, 2495779, 4991558, 9983116, 19966232]

約数ペア:

[(1, 19966232), (2, 9983116), (4, 4991558), (8, 2495779), (11, 1815112), (13, 1535864), (22, 907556), (26, 767932), (31, 644072), (44, 453778), (52, 383966), (62, 322036), (88, 226889), (104, 191983), (124, 161018), (143, 139624), (248, 80509), (286, 69812), (341, 58552), (403, 49544), (563, 35464), (572, 34906), (682, 29276), (806, 24772), (1126, 17732), (1144, 17453), (1364, 14638), (1612, 12386), (2252, 8866), (2728, 7319), (3224, 6193), (4433, 4504)]