19967506

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{8629}}^1$

素因数の和:8733

約数の個数: 16

約数和(自身を含む): 32621400

約数和(自身を除く): 12653894

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 8629, 17258, 112177, 224354, 767981, 1535962, 9983753, 19967506]

約数ペア:

[(1, 19967506), (2, 9983753), (13, 1535962), (26, 767981), (89, 224354), (178, 112177), (1157, 17258), (2314, 8629)]