19994868

素因数分解:

$2^2\times 3^2\times {\mathrm{449}}^1\times {\mathrm{1237}}^1$

素因数の和:1696

約数の個数: 36

約数和(自身を含む): 50696100

約数和(自身を除く): 30701232

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 449, 898, 1237, 1347, 1796, 2474, 2694, 3711, 4041, 4948, 5388, 7422, 8082, 11133, 14844, 16164, 22266, 44532, 555413, 1110826, 1666239, 2221652, 3332478, 4998717, 6664956, 9997434, 19994868]

約数ペア:

[(1, 19994868), (2, 9997434), (3, 6664956), (4, 4998717), (6, 3332478), (9, 2221652), (12, 1666239), (18, 1110826), (36, 555413), (449, 44532), (898, 22266), (1237, 16164), (1347, 14844), (1796, 11133), (2474, 8082), (2694, 7422), (3711, 5388), (4041, 4948)]