19945964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{563}}^1$

素因数の和:1105

約数の個数: 24

約数和(自身を含む): 37095408

約数和(自身を除く): 17149444

約数列:

[1, 2, 4, 17, 34, 68, 521, 563, 1042, 1126, 2084, 2252, 8857, 9571, 17714, 19142, 35428, 38284, 293323, 586646, 1173292, 4986491, 9972982, 19945964]

約数ペア:

[(1, 19945964), (2, 9972982), (4, 4986491), (17, 1173292), (34, 586646), (68, 293323), (521, 38284), (563, 35428), (1042, 19142), (1126, 17714), (2084, 9571), (2252, 8857)]