20941382

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 43752960

約数和(自身を除く): 22811578

約数列:

[1, 2, 7, 11, 14, 17, 19, 22, 34, 38, 77, 119, 133, 154, 187, 209, 238, 266, 323, 374, 418, 421, 646, 842, 1309, 1463, 2261, 2618, 2926, 2947, 3553, 4522, 4631, 5894, 7106, 7157, 7999, 9262, 14314, 15998, 24871, 32417, 49742, 50099, 55993, 64834, 78727, 87989, 100198, 111986, 135983, 157454, 175978, 271966, 551089, 615923, 951881, 1102178, 1231846, 1495813, 1903762, 2991626, 10470691, 20941382]

約数ペア:

[(1, 20941382), (2, 10470691), (7, 2991626), (11, 1903762), (14, 1495813), (17, 1231846), (19, 1102178), (22, 951881), (34, 615923), (38, 551089), (77, 271966), (119, 175978), (133, 157454), (154, 135983), (187, 111986), (209, 100198), (238, 87989), (266, 78727), (323, 64834), (374, 55993), (418, 50099), (421, 49742), (646, 32417), (842, 24871), (1309, 15998), (1463, 14314), (2261, 9262), (2618, 7999), (2926, 7157), (2947, 7106), (3553, 5894), (4522, 4631)]