19261978

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1987}}^1$

素因数の和:2157

約数の個数: 16

約数和(自身を含む): 29915424

約数和(自身を除く): 10653446

約数列:

[1, 2, 37, 74, 131, 262, 1987, 3974, 4847, 9694, 73519, 147038, 260297, 520594, 9630989, 19261978]

約数ペア:

[(1, 19261978), (2, 9630989), (37, 520594), (74, 260297), (131, 147038), (262, 73519), (1987, 9694), (3974, 4847)]