19138353

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 9601743

約数列:

[1, 3, 13, 39, 47, 53, 141, 159, 197, 591, 611, 689, 1833, 2067, 2491, 2561, 7473, 7683, 9259, 10441, 27777, 31323, 32383, 97149, 120367, 135733, 361101, 407199, 490727, 1472181, 6379451, 19138353]

約数ペア:

[(1, 19138353), (3, 6379451), (13, 1472181), (39, 490727), (47, 407199), (53, 361101), (141, 135733), (159, 120367), (197, 97149), (591, 32383), (611, 31323), (689, 27777), (1833, 10441), (2067, 9259), (2491, 7683), (2561, 7473)]