291268005

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{20857}}^1$

素因数の和:20898

約数の個数: 48

約数和(自身を含む): 570674880

約数和(自身を除く): 279406875

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2793, 4655, 13965, 20857, 62571, 104285, 145999, 312855, 396283, 437997, 729995, 1021993, 1188849, 1981415, 2189985, 2773981, 3065979, 5109965, 5944245, 8321943, 13869905, 15329895, 19417867, 41609715, 58253601, 97089335, 291268005]

約数ペア:

[(1, 291268005), (3, 97089335), (5, 58253601), (7, 41609715), (15, 19417867), (19, 15329895), (21, 13869905), (35, 8321943), (49, 5944245), (57, 5109965), (95, 3065979), (105, 2773981), (133, 2189985), (147, 1981415), (245, 1188849), (285, 1021993), (399, 729995), (665, 437997), (735, 396283), (931, 312855), (1995, 145999), (2793, 104285), (4655, 62571), (13965, 20857)]