2021968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{9721}}^1$

素因数の和:9742

約数の個数: 20

約数和(自身を含む): 4219348

約数和(自身を除く): 2197380

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 9721, 19442, 38884, 77768, 126373, 155536, 252746, 505492, 1010984, 2021968]

約数ペア:

[(1, 2021968), (2, 1010984), (4, 505492), (8, 252746), (13, 155536), (16, 126373), (26, 77768), (52, 38884), (104, 19442), (208, 9721)]