18939543

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 30474240

約数和(自身を除く): 11534697

約数列:

[1, 3, 7, 21, 31, 47, 93, 141, 217, 329, 619, 651, 987, 1457, 1857, 4333, 4371, 10199, 12999, 19189, 29093, 30597, 57567, 87279, 134323, 203651, 402969, 610953, 901883, 2705649, 6313181, 18939543]

約数ペア:

[(1, 18939543), (3, 6313181), (7, 2705649), (21, 901883), (31, 610953), (47, 402969), (93, 203651), (141, 134323), (217, 87279), (329, 57567), (619, 30597), (651, 29093), (987, 19189), (1457, 12999), (1857, 10199), (4333, 4371)]