21709748

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 42411600

約数和(自身を除く): 20701852

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 101, 109, 116, 202, 218, 404, 436, 493, 986, 1717, 1853, 1972, 2929, 3161, 3434, 3706, 5858, 6322, 6868, 7412, 11009, 11716, 12644, 22018, 44036, 49793, 53737, 99586, 107474, 187153, 199172, 214948, 319261, 374306, 638522, 748612, 1277044, 5427437, 10854874, 21709748]

約数ペア:

[(1, 21709748), (2, 10854874), (4, 5427437), (17, 1277044), (29, 748612), (34, 638522), (58, 374306), (68, 319261), (101, 214948), (109, 199172), (116, 187153), (202, 107474), (218, 99586), (404, 53737), (436, 49793), (493, 44036), (986, 22018), (1717, 12644), (1853, 11716), (1972, 11009), (2929, 7412), (3161, 6868), (3434, 6322), (3706, 5858)]