20814138

素因数分解:

$2^1\times 3^3\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27569862

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 59, 94, 118, 139, 141, 177, 278, 282, 354, 417, 423, 531, 834, 846, 1062, 1251, 1269, 1593, 2502, 2538, 2773, 3186, 3753, 5546, 6533, 7506, 8201, 8319, 13066, 16402, 16638, 19599, 24603, 24957, 39198, 49206, 49914, 58797, 73809, 74871, 117594, 147618, 149742, 176391, 221427, 352782, 385447, 442854, 770894, 1156341, 2312682, 3469023, 6938046, 10407069, 20814138]

約数ペア:

[(1, 20814138), (2, 10407069), (3, 6938046), (6, 3469023), (9, 2312682), (18, 1156341), (27, 770894), (47, 442854), (54, 385447), (59, 352782), (94, 221427), (118, 176391), (139, 149742), (141, 147618), (177, 117594), (278, 74871), (282, 73809), (354, 58797), (417, 49914), (423, 49206), (531, 39198), (834, 24957), (846, 24603), (1062, 19599), (1251, 16638), (1269, 16402), (1593, 13066), (2502, 8319), (2538, 8201), (2773, 7506), (3186, 6533), (3753, 5546)]