19872190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2153}}^1$

素因数の和:2244

約数の個数: 32

約数和(自身を含む): 39082176

約数和(自身を除く): 19209986

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 2153, 4306, 4615, 9230, 10765, 21530, 27989, 55978, 139945, 152863, 279890, 305726, 764315, 1528630, 1987219, 3974438, 9936095, 19872190]

約数ペア:

[(1, 19872190), (2, 9936095), (5, 3974438), (10, 1987219), (13, 1528630), (26, 764315), (65, 305726), (71, 279890), (130, 152863), (142, 139945), (355, 55978), (710, 27989), (923, 21530), (1846, 10765), (2153, 9230), (4306, 4615)]