19859788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20101}}^1$

素因数の和:20137

約数の個数: 24

約数和(自身を含む): 39399920

約数和(自身を除く): 19540132

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20101, 40202, 80404, 261313, 381919, 522626, 763838, 1045252, 1527676, 4964947, 9929894, 19859788]

約数ペア:

[(1, 19859788), (2, 9929894), (4, 4964947), (13, 1527676), (19, 1045252), (26, 763838), (38, 522626), (52, 381919), (76, 261313), (247, 80404), (494, 40202), (988, 20101)]