19872885

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 33247872

約数和(自身を除く): 13374987

約数列:

[1, 3, 5, 15, 37, 61, 111, 183, 185, 305, 555, 587, 915, 1761, 2257, 2935, 6771, 8805, 11285, 21719, 33855, 35807, 65157, 107421, 108595, 179035, 325785, 537105, 1324859, 3974577, 6624295, 19872885]

約数ペア:

[(1, 19872885), (3, 6624295), (5, 3974577), (15, 1324859), (37, 537105), (61, 325785), (111, 179035), (183, 108595), (185, 107421), (305, 65157), (555, 35807), (587, 33855), (915, 21719), (1761, 11285), (2257, 8805), (2935, 6771)]