19991166

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1301}}^1$

素因数の和:1516

約数の個数: 32

約数和(自身を含む): 43309728

約数和(自身を除く): 23318562

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 197, 394, 591, 1182, 1301, 2561, 2602, 3903, 5122, 7683, 7806, 15366, 16913, 33826, 50739, 101478, 256297, 512594, 768891, 1537782, 3331861, 6663722, 9995583, 19991166]

約数ペア:

[(1, 19991166), (2, 9995583), (3, 6663722), (6, 3331861), (13, 1537782), (26, 768891), (39, 512594), (78, 256297), (197, 101478), (394, 50739), (591, 33826), (1182, 16913), (1301, 15366), (2561, 7806), (2602, 7683), (3903, 5122)]