19665107

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 26417664

約数和(自身を除く): 6752557

約数列:

[1, 7, 11, 17, 77, 83, 119, 181, 187, 581, 913, 1267, 1309, 1411, 1991, 3077, 6391, 9877, 13937, 15023, 15521, 21539, 33847, 105161, 108647, 165253, 236929, 255391, 1156771, 1787737, 2809301, 19665107]

約数ペア:

[(1, 19665107), (7, 2809301), (11, 1787737), (17, 1156771), (77, 255391), (83, 236929), (119, 165253), (181, 108647), (187, 105161), (581, 33847), (913, 21539), (1267, 15521), (1309, 15023), (1411, 13937), (1991, 9877), (3077, 6391)]