19781808

素因数分解:

$2^4\times 3^1\times {\mathrm{263}}^1\times {\mathrm{1567}}^1$

素因数の和:1841

約数の個数: 40

約数和(自身を含む): 51330048

約数和(自身を除く): 31548240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 263, 526, 789, 1052, 1567, 1578, 2104, 3134, 3156, 4208, 4701, 6268, 6312, 9402, 12536, 12624, 18804, 25072, 37608, 75216, 412121, 824242, 1236363, 1648484, 2472726, 3296968, 4945452, 6593936, 9890904, 19781808]

約数ペア:

[(1, 19781808), (2, 9890904), (3, 6593936), (4, 4945452), (6, 3296968), (8, 2472726), (12, 1648484), (16, 1236363), (24, 824242), (48, 412121), (263, 75216), (526, 37608), (789, 25072), (1052, 18804), (1567, 12624), (1578, 12536), (2104, 9402), (3134, 6312), (3156, 6268), (4208, 4701)]