21449904004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1777}}^1\times {\mathrm{2237}}^1$

素因数の和:4108

約数の個数: 48

約数和(自身を含む): 40109973120

約数和(自身を除く): 18660069116

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 1777, 2237, 2698, 3554, 4474, 5396, 7108, 8948, 33763, 42503, 67526, 85006, 126167, 135052, 158827, 170012, 252334, 317654, 504668, 635308, 2397173, 3017713, 3975149, 4794346, 6035426, 7950298, 9588692, 12070852, 15900596, 75527831, 151055662, 282235579, 302111324, 564471158, 1128942316, 5362476001, 10724952002, 21449904004]

約数ペア:

[(1, 21449904004), (2, 10724952002), (4, 5362476001), (19, 1128942316), (38, 564471158), (71, 302111324), (76, 282235579), (142, 151055662), (284, 75527831), (1349, 15900596), (1777, 12070852), (2237, 9588692), (2698, 7950298), (3554, 6035426), (4474, 4794346), (5396, 3975149), (7108, 3017713), (8948, 2397173), (33763, 635308), (42503, 504668), (67526, 317654), (85006, 252334), (126167, 170012), (135052, 158827)]