19401668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 40388544

約数和(自身を除く): 20986876

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 107, 143, 214, 286, 317, 428, 572, 634, 1177, 1268, 1391, 2354, 2782, 3487, 4121, 4708, 5564, 6974, 8242, 13948, 15301, 16484, 30602, 33919, 45331, 61204, 67838, 90662, 135676, 181324, 373109, 440947, 746218, 881894, 1492436, 1763788, 4850417, 9700834, 19401668]

約数ペア:

[(1, 19401668), (2, 9700834), (4, 4850417), (11, 1763788), (13, 1492436), (22, 881894), (26, 746218), (44, 440947), (52, 373109), (107, 181324), (143, 135676), (214, 90662), (286, 67838), (317, 61204), (428, 45331), (572, 33919), (634, 30602), (1177, 16484), (1268, 15301), (1391, 13948), (2354, 8242), (2782, 6974), (3487, 5564), (4121, 4708)]