19973798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 14088538

約数列:

[1, 2, 13, 23, 26, 46, 127, 254, 263, 299, 526, 598, 1651, 2921, 3302, 3419, 5842, 6049, 6838, 12098, 33401, 37973, 66802, 75946, 78637, 157274, 434213, 768223, 868426, 1536446, 9986899, 19973798]

約数ペア:

[(1, 19973798), (2, 9986899), (13, 1536446), (23, 868426), (26, 768223), (46, 434213), (127, 157274), (254, 78637), (263, 75946), (299, 66802), (526, 37973), (598, 33401), (1651, 12098), (2921, 6838), (3302, 6049), (3419, 5842)]