21152802812

素因数分解:

$2^2\times {\mathrm{255259}}^1\times {\mathrm{20717}}^1$

素因数の和:275980

約数の個数: 12

約数和(自身を含む): 37019336760

約数和(自身を除く): 15866533948

約数列:

[1, 2, 4, 20717, 41434, 82868, 255259, 510518, 1021036, 5288200703, 10576401406, 21152802812]

約数ペア:

[(1, 21152802812), (2, 10576401406), (4, 5288200703), (20717, 1021036), (41434, 510518), (82868, 255259)]