20669523

素因数分解:

$3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 12162477

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 343, 371, 379, 1029, 1113, 1137, 2597, 2653, 7791, 7959, 18179, 18571, 20087, 54537, 55713, 60261, 129997, 140609, 389991, 421827, 984263, 2952789, 6889841, 20669523]

約数ペア:

[(1, 20669523), (3, 6889841), (7, 2952789), (21, 984263), (49, 421827), (53, 389991), (147, 140609), (159, 129997), (343, 60261), (371, 55713), (379, 54537), (1029, 20087), (1113, 18571), (1137, 18179), (2597, 7959), (2653, 7791)]