19816208

素因数分解:

$2^4\times {\mathrm{1097}}^1\times {\mathrm{1129}}^1$

素因数の和:2234

約数の個数: 20

約数和(自身を含む): 38462940

約数和(自身を除く): 18646732

約数列:

[1, 2, 4, 8, 16, 1097, 1129, 2194, 2258, 4388, 4516, 8776, 9032, 17552, 18064, 1238513, 2477026, 4954052, 9908104, 19816208]

約数ペア:

[(1, 19816208), (2, 9908104), (4, 4954052), (8, 2477026), (16, 1238513), (1097, 18064), (1129, 17552), (2194, 9032), (2258, 8776), (4388, 4516)]