21256565904

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{21087863}}^1$

素因数の和:21087884

約数の個数: 60

約数和(自身を含む): 67987273536

約数和(自身を除く): 46730707632

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 21087863, 42175726, 63263589, 84351452, 126527178, 147615041, 168702904, 189790767, 253054356, 295230082, 337405808, 379581534, 442845123, 506108712, 590460164, 759163068, 885690246, 1012217424, 1180920328, 1328535369, 1518326136, 1771380492, 2361840656, 2657070738, 3036652272, 3542760984, 5314141476, 7085521968, 10628282952, 21256565904]

約数ペア:

[(1, 21256565904), (2, 10628282952), (3, 7085521968), (4, 5314141476), (6, 3542760984), (7, 3036652272), (8, 2657070738), (9, 2361840656), (12, 1771380492), (14, 1518326136), (16, 1328535369), (18, 1180920328), (21, 1012217424), (24, 885690246), (28, 759163068), (36, 590460164), (42, 506108712), (48, 442845123), (56, 379581534), (63, 337405808), (72, 295230082), (84, 253054356), (112, 189790767), (126, 168702904), (144, 147615041), (168, 126527178), (252, 84351452), (336, 63263589), (504, 42175726), (1008, 21087863)]