21704176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104347}}^1$

素因数の和:104368

約数の個数: 20

約数和(自身を含む): 45287032

約数和(自身を除く): 23582856

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104347, 208694, 417388, 834776, 1356511, 1669552, 2713022, 5426044, 10852088, 21704176]

約数ペア:

[(1, 21704176), (2, 10852088), (4, 5426044), (8, 2713022), (13, 1669552), (16, 1356511), (26, 834776), (52, 417388), (104, 208694), (208, 104347)]