20991460896

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{10412431}}^1$

素因数の和:10412454

約数の個数: 72

約数和(自身を含む): 68222254464

約数和(自身を除く): 47230793568

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 10412431, 20824862, 31237293, 41649724, 62474586, 72887017, 83299448, 93711879, 124949172, 145774034, 166598896, 187423758, 218661051, 249898344, 291548068, 333197792, 374847516, 437322102, 499796688, 583096136, 655983153, 749695032, 874644204, 999593376, 1166192272, 1311966306, 1499390064, 1749288408, 2332384544, 2623932612, 2998780128, 3498576816, 5247865224, 6997153632, 10495730448, 20991460896]

約数ペア:

[(1, 20991460896), (2, 10495730448), (3, 6997153632), (4, 5247865224), (6, 3498576816), (7, 2998780128), (8, 2623932612), (9, 2332384544), (12, 1749288408), (14, 1499390064), (16, 1311966306), (18, 1166192272), (21, 999593376), (24, 874644204), (28, 749695032), (32, 655983153), (36, 583096136), (42, 499796688), (48, 437322102), (56, 374847516), (63, 333197792), (72, 291548068), (84, 249898344), (96, 218661051), (112, 187423758), (126, 166598896), (144, 145774034), (168, 124949172), (224, 93711879), (252, 83299448), (288, 72887017), (336, 62474586), (504, 41649724), (672, 31237293), (1008, 20824862), (2016, 10412431)]