21335068

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21000932

約数列:

[1, 2, 4, 17, 29, 31, 34, 58, 62, 68, 116, 124, 349, 493, 527, 698, 899, 986, 1054, 1396, 1798, 1972, 2108, 3596, 5933, 10121, 10819, 11866, 15283, 20242, 21638, 23732, 30566, 40484, 43276, 61132, 172057, 183923, 313751, 344114, 367846, 627502, 688228, 735692, 1255004, 5333767, 10667534, 21335068]

約数ペア:

[(1, 21335068), (2, 10667534), (4, 5333767), (17, 1255004), (29, 735692), (31, 688228), (34, 627502), (58, 367846), (62, 344114), (68, 313751), (116, 183923), (124, 172057), (349, 61132), (493, 43276), (527, 40484), (698, 30566), (899, 23732), (986, 21638), (1054, 20242), (1396, 15283), (1798, 11866), (1972, 10819), (2108, 10121), (3596, 5933)]