21564934

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{643}}^1$

素因数の和:1095

約数の個数: 16

約数和(自身を含む): 33269040

約数和(自身を除く): 11704106

約数列:

[1, 2, 41, 82, 409, 643, 818, 1286, 16769, 26363, 33538, 52726, 262987, 525974, 10782467, 21564934]

約数ペア:

[(1, 21564934), (2, 10782467), (41, 525974), (82, 262987), (409, 52726), (643, 33538), (818, 26363), (1286, 16769)]