21920301

素因数分解:

$3^8\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:294

約数の個数: 36

約数和(自身を含む): 35545692

約数和(自身を除く): 13625391

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 257, 351, 729, 771, 1053, 2187, 2313, 3159, 3341, 6561, 6939, 9477, 10023, 20817, 28431, 30069, 62451, 85293, 90207, 187353, 270621, 562059, 811863, 1686177, 2435589, 7306767, 21920301]

約数ペア:

[(1, 21920301), (3, 7306767), (9, 2435589), (13, 1686177), (27, 811863), (39, 562059), (81, 270621), (117, 187353), (243, 90207), (257, 85293), (351, 62451), (729, 30069), (771, 28431), (1053, 20817), (2187, 10023), (2313, 9477), (3159, 6939), (3341, 6561)]