21172378

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 35283600

約数和(自身を除く): 14111222

約数列:

[1, 2, 17, 29, 34, 58, 109, 197, 218, 394, 493, 986, 1853, 3161, 3349, 3706, 5713, 6322, 6698, 11426, 21473, 42946, 53737, 97121, 107474, 194242, 365041, 622717, 730082, 1245434, 10586189, 21172378]

約数ペア:

[(1, 21172378), (2, 10586189), (17, 1245434), (29, 730082), (34, 622717), (58, 365041), (109, 194242), (197, 107474), (218, 97121), (394, 53737), (493, 42946), (986, 21473), (1853, 11426), (3161, 6698), (3349, 6322), (3706, 5713)]