20403838

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1579}}^1$

素因数の和:1672

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 17819522

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1579, 1846, 3158, 6461, 11053, 12922, 20527, 22106, 41054, 112109, 143689, 224218, 287378, 784763, 1457417, 1569526, 2914834, 10201919, 20403838]

約数ペア:

[(1, 20403838), (2, 10201919), (7, 2914834), (13, 1569526), (14, 1457417), (26, 784763), (71, 287378), (91, 224218), (142, 143689), (182, 112109), (497, 41054), (923, 22106), (994, 20527), (1579, 12922), (1846, 11053), (3158, 6461)]