21738704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104513}}^1$

素因数の和:104534

約数の個数: 20

約数和(自身を含む): 45359076

約数和(自身を除く): 23620372

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104513, 209026, 418052, 836104, 1358669, 1672208, 2717338, 5434676, 10869352, 21738704]

約数ペア:

[(1, 21738704), (2, 10869352), (4, 5434676), (8, 2717338), (13, 1672208), (16, 1358669), (26, 836104), (52, 418052), (104, 209026), (208, 104513)]