19991114

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{69899}}^1$

素因数の和:69925

約数の個数: 16

約数和(自身を含む): 35229600

約数和(自身を除く): 15238486

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 69899, 139798, 768889, 908687, 1537778, 1817374, 9995557, 19991114]

約数ペア:

[(1, 19991114), (2, 9995557), (11, 1817374), (13, 1537778), (22, 908687), (26, 768889), (143, 139798), (286, 69899)]