21274026544

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{6681541}}^1$

素因数の和:6681748

約数の個数: 20

約数和(自身を含む): 41425560400

約数和(自身を除く): 20151533856

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 6681541, 13363082, 26726164, 53452328, 106904656, 1329626659, 2659253318, 5318506636, 10637013272, 21274026544]

約数ペア:

[(1, 21274026544), (2, 10637013272), (4, 5318506636), (8, 2659253318), (16, 1329626659), (199, 106904656), (398, 53452328), (796, 26726164), (1592, 13363082), (3184, 6681541)]