21260829

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{593}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 11242851

約数列:

[1, 3, 17, 19, 37, 51, 57, 111, 323, 593, 629, 703, 969, 1779, 1887, 2109, 10081, 11267, 11951, 21941, 30243, 33801, 35853, 65823, 191539, 372997, 416879, 574617, 1118991, 1250637, 7086943, 21260829]

約数ペア:

[(1, 21260829), (3, 7086943), (17, 1250637), (19, 1118991), (37, 574617), (51, 416879), (57, 372997), (111, 191539), (323, 65823), (593, 35853), (629, 33801), (703, 30243), (969, 21941), (1779, 11951), (1887, 11267), (2109, 10081)]