21699601

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 27841536

約数和(自身を除く): 6141935

約数列:

[1, 7, 11, 49, 77, 127, 317, 539, 889, 1397, 2219, 3487, 6223, 9779, 15533, 24409, 40259, 68453, 170863, 281813, 442849, 1972691, 3099943, 21699601]

約数ペア:

[(1, 21699601), (7, 3099943), (11, 1972691), (49, 442849), (77, 281813), (127, 170863), (317, 68453), (539, 40259), (889, 24409), (1397, 15533), (2219, 9779), (3487, 6223)]