19723738

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:246

約数の個数: 32

約数和(自身を含む): 31912704

約数和(自身を除く): 12188966

約数列:

[1, 2, 37, 47, 53, 74, 94, 106, 107, 214, 1739, 1961, 2491, 3478, 3922, 3959, 4982, 5029, 5671, 7918, 10058, 11342, 92167, 184334, 186073, 209827, 266537, 372146, 419654, 533074, 9861869, 19723738]

約数ペア:

[(1, 19723738), (2, 9861869), (37, 533074), (47, 419654), (53, 372146), (74, 266537), (94, 209827), (106, 186073), (107, 184334), (214, 92167), (1739, 11342), (1961, 10058), (2491, 7918), (3478, 5671), (3922, 5029), (3959, 4982)]