21000270972

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{284233}}^1$

素因数の和:284418

約数の個数: 48

約数和(自身を含む): 50425385472

約数和(自身を除く): 29425114500

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 131, 141, 188, 262, 282, 393, 524, 564, 786, 1572, 6157, 12314, 18471, 24628, 36942, 73884, 284233, 568466, 852699, 1136932, 1705398, 3410796, 13358951, 26717902, 37234523, 40076853, 53435804, 74469046, 80153706, 111703569, 148938092, 160307412, 223407138, 446814276, 1750022581, 3500045162, 5250067743, 7000090324, 10500135486, 21000270972]

約数ペア:

[(1, 21000270972), (2, 10500135486), (3, 7000090324), (4, 5250067743), (6, 3500045162), (12, 1750022581), (47, 446814276), (94, 223407138), (131, 160307412), (141, 148938092), (188, 111703569), (262, 80153706), (282, 74469046), (393, 53435804), (524, 40076853), (564, 37234523), (786, 26717902), (1572, 13358951), (6157, 3410796), (12314, 1705398), (18471, 1136932), (24628, 852699), (36942, 568466), (73884, 284233)]