19811612

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{827}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 35680176

約数和(自身を除く): 15868564

約数列:

[1, 2, 4, 53, 106, 113, 212, 226, 452, 827, 1654, 3308, 5989, 11978, 23956, 43831, 87662, 93451, 175324, 186902, 373804, 4952903, 9905806, 19811612]

約数ペア:

[(1, 19811612), (2, 9905806), (4, 4952903), (53, 373804), (106, 186902), (113, 175324), (212, 93451), (226, 87662), (452, 43831), (827, 23956), (1654, 11978), (3308, 5989)]