21550067

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 28905984

約数和(自身を除く): 7355917

約数列:

[1, 7, 11, 17, 77, 101, 119, 163, 187, 707, 1111, 1141, 1309, 1717, 1793, 2771, 7777, 12019, 12551, 16463, 18887, 19397, 30481, 115241, 132209, 181093, 213367, 279871, 1267651, 1959097, 3078581, 21550067]

約数ペア:

[(1, 21550067), (7, 3078581), (11, 1959097), (17, 1267651), (77, 279871), (101, 213367), (119, 181093), (163, 132209), (187, 115241), (707, 30481), (1111, 19397), (1141, 18887), (1309, 16463), (1717, 12551), (1793, 12019), (2771, 7777)]