20663868

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{90631}}^1$

素因数の和:90657

約数の個数: 24

約数和(自身を含む): 50753920

約数和(自身を除く): 30090052

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 90631, 181262, 271893, 362524, 543786, 1087572, 1721989, 3443978, 5165967, 6887956, 10331934, 20663868]

約数ペア:

[(1, 20663868), (2, 10331934), (3, 6887956), (4, 5165967), (6, 3443978), (12, 1721989), (19, 1087572), (38, 543786), (57, 362524), (76, 271893), (114, 181262), (228, 90631)]