21090798

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{743}}^1$

素因数の和:853

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 27656082

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 83, 114, 166, 171, 249, 342, 498, 743, 747, 1486, 1494, 1577, 2229, 3154, 4458, 4731, 6687, 9462, 13374, 14117, 14193, 28234, 28386, 42351, 61669, 84702, 123338, 127053, 185007, 254106, 370014, 555021, 1110042, 1171711, 2343422, 3515133, 7030266, 10545399, 21090798]

約数ペア:

[(1, 21090798), (2, 10545399), (3, 7030266), (6, 3515133), (9, 2343422), (18, 1171711), (19, 1110042), (38, 555021), (57, 370014), (83, 254106), (114, 185007), (166, 127053), (171, 123338), (249, 84702), (342, 61669), (498, 42351), (743, 28386), (747, 28234), (1486, 14193), (1494, 14117), (1577, 13374), (2229, 9462), (3154, 6687), (4458, 4731)]