21389112

素因数分解:

$2^3\times 3^2\times {\mathrm{419}}^1\times {\mathrm{709}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 58149000

約数和(自身を除く): 36759888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 419, 709, 838, 1257, 1418, 1676, 2127, 2514, 2836, 3352, 3771, 4254, 5028, 5672, 6381, 7542, 8508, 10056, 12762, 15084, 17016, 25524, 30168, 51048, 297071, 594142, 891213, 1188284, 1782426, 2376568, 2673639, 3564852, 5347278, 7129704, 10694556, 21389112]

約数ペア:

[(1, 21389112), (2, 10694556), (3, 7129704), (4, 5347278), (6, 3564852), (8, 2673639), (9, 2376568), (12, 1782426), (18, 1188284), (24, 891213), (36, 594142), (72, 297071), (419, 51048), (709, 30168), (838, 25524), (1257, 17016), (1418, 15084), (1676, 12762), (2127, 10056), (2514, 8508), (2836, 7542), (3352, 6381), (3771, 5672), (4254, 5028)]