21209156942

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{1187}}^1\times {\mathrm{470207}}^1$

素因数の和:471415

約数の個数: 16

約数和(自身を含む): 33516426240

約数和(自身を除く): 12307269298

約数列:

[1, 2, 19, 38, 1187, 2374, 22553, 45106, 470207, 940414, 8933933, 17867866, 558135709, 1116271418, 10604578471, 21209156942]

約数ペア:

[(1, 21209156942), (2, 10604578471), (19, 1116271418), (38, 558135709), (1187, 17867866), (2374, 8933933), (22553, 940414), (45106, 470207)]