21120974

素因数分解:

$2^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:360

約数の個数: 32

約数和(自身を含む): 37180416

約数和(自身を除く): 16059442

約数列:

[1, 2, 7, 14, 97, 103, 151, 194, 206, 302, 679, 721, 1057, 1358, 1442, 2114, 9991, 14647, 15553, 19982, 29294, 31106, 69937, 102529, 108871, 139874, 205058, 217742, 1508641, 3017282, 10560487, 21120974]

約数ペア:

[(1, 21120974), (2, 10560487), (7, 3017282), (14, 1508641), (97, 217742), (103, 205058), (151, 139874), (194, 108871), (206, 102529), (302, 69937), (679, 31106), (721, 29294), (1057, 19982), (1358, 15553), (1442, 14647), (2114, 9991)]