21812301

素因数分解:

$3^3\times 7^2\times {\mathrm{16487}}^1$

素因数の和:16510

約数の個数: 24

約数和(自身を含む): 37592640

約数和(自身を除く): 15780339

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16487, 49461, 115409, 148383, 346227, 445149, 807863, 1038681, 2423589, 3116043, 7270767, 21812301]

約数ペア:

[(1, 21812301), (3, 7270767), (7, 3116043), (9, 2423589), (21, 1038681), (27, 807863), (49, 445149), (63, 346227), (147, 148383), (189, 115409), (441, 49461), (1323, 16487)]