21782564

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{4013}}^1$

素因数の和:4099

約数の個数: 24

約数和(自身を含む): 40461120

約数和(自身を除く): 18678556

約数列:

[1, 2, 4, 23, 46, 59, 92, 118, 236, 1357, 2714, 4013, 5428, 8026, 16052, 92299, 184598, 236767, 369196, 473534, 947068, 5445641, 10891282, 21782564]

約数ペア:

[(1, 21782564), (2, 10891282), (4, 5445641), (23, 947068), (46, 473534), (59, 369196), (92, 236767), (118, 184598), (236, 92299), (1357, 16052), (2714, 8026), (4013, 5428)]