21683860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98563}}^1$

素因数の和:98583

約数の個数: 24

約数和(自身を含む): 49676256

約数和(自身を除く): 27992396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98563, 197126, 394252, 492815, 985630, 1084193, 1971260, 2168386, 4336772, 5420965, 10841930, 21683860]

約数ペア:

[(1, 21683860), (2, 10841930), (4, 5420965), (5, 4336772), (10, 2168386), (11, 1971260), (20, 1084193), (22, 985630), (44, 492815), (55, 394252), (110, 197126), (220, 98563)]