221870721

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{523}}^1\times {\mathrm{3449}}^1$

素因数の和:4016

約数の個数: 16

約数和(自身を含む): 303710400

約数和(自身を除く): 81839679

約数列:

[1, 3, 41, 123, 523, 1569, 3449, 10347, 21443, 64329, 141409, 424227, 1803827, 5411481, 73956907, 221870721]

約数ペア:

[(1, 221870721), (3, 73956907), (41, 5411481), (123, 1803827), (523, 424227), (1569, 141409), (3449, 64329), (10347, 21443)]