211221992

素因数分解:

$2^3\times {\mathrm{653}}^1\times {\mathrm{40433}}^1$

素因数の和:41092

約数の個数: 16

約数和(自身を含む): 396657540

約数和(自身を除く): 185435548

約数列:

[1, 2, 4, 8, 653, 1306, 2612, 5224, 40433, 80866, 161732, 323464, 26402749, 52805498, 105610996, 211221992]

約数ペア:

[(1, 211221992), (2, 105610996), (4, 52805498), (8, 26402749), (653, 323464), (1306, 161732), (2612, 80866), (5224, 40433)]