21343312

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25169}}^1$

素因数の和:25230

約数の個数: 20

約数和(自身を含む): 42134580

約数和(自身を除く): 20791268

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25169, 50338, 100676, 201352, 402704, 1333957, 2667914, 5335828, 10671656, 21343312]

約数ペア:

[(1, 21343312), (2, 10671656), (4, 5335828), (8, 2667914), (16, 1333957), (53, 402704), (106, 201352), (212, 100676), (424, 50338), (848, 25169)]