19952205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 40255488

約数和(自身を除く): 20303283

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 47, 65, 91, 105, 141, 195, 235, 273, 311, 329, 455, 611, 705, 933, 987, 1365, 1555, 1645, 1833, 2177, 3055, 4043, 4277, 4665, 4935, 6531, 9165, 10885, 12129, 12831, 14617, 20215, 21385, 28301, 32655, 43851, 60645, 64155, 73085, 84903, 102319, 141505, 190021, 219255, 306957, 424515, 511595, 570063, 950105, 1330147, 1534785, 2850315, 3990441, 6650735, 19952205]

約数ペア:

[(1, 19952205), (3, 6650735), (5, 3990441), (7, 2850315), (13, 1534785), (15, 1330147), (21, 950105), (35, 570063), (39, 511595), (47, 424515), (65, 306957), (91, 219255), (105, 190021), (141, 141505), (195, 102319), (235, 84903), (273, 73085), (311, 64155), (329, 60645), (455, 43851), (611, 32655), (705, 28301), (933, 21385), (987, 20215), (1365, 14617), (1555, 12831), (1645, 12129), (1833, 10885), (2177, 9165), (3055, 6531), (4043, 4935), (4277, 4665)]