20216664

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21599}}^1$

素因数の和:21624

約数の個数: 48

約数和(自身を含む): 58968000

約数和(自身を除く): 38751336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21599, 43198, 64797, 86396, 129594, 172792, 194391, 259188, 280787, 388782, 518376, 561574, 777564, 842361, 1123148, 1555128, 1684722, 2246296, 2527083, 3369444, 5054166, 6738888, 10108332, 20216664]

約数ペア:

[(1, 20216664), (2, 10108332), (3, 6738888), (4, 5054166), (6, 3369444), (8, 2527083), (9, 2246296), (12, 1684722), (13, 1555128), (18, 1123148), (24, 842361), (26, 777564), (36, 561574), (39, 518376), (52, 388782), (72, 280787), (78, 259188), (104, 194391), (117, 172792), (156, 129594), (234, 86396), (312, 64797), (468, 43198), (936, 21599)]