21033054

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{7949}}^1$

素因数の和:7974

約数の個数: 48

約数和(自身を含む): 54378000

約数和(自身を除く): 33344946

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 7949, 15898, 23847, 47694, 55643, 71541, 111286, 143082, 166929, 214623, 333858, 389501, 429246, 500787, 779002, 1001574, 1168503, 1502361, 2337006, 3004722, 3505509, 7011018, 10516527, 21033054]

約数ペア:

[(1, 21033054), (2, 10516527), (3, 7011018), (6, 3505509), (7, 3004722), (9, 2337006), (14, 1502361), (18, 1168503), (21, 1001574), (27, 779002), (42, 500787), (49, 429246), (54, 389501), (63, 333858), (98, 214623), (126, 166929), (147, 143082), (189, 111286), (294, 71541), (378, 55643), (441, 47694), (882, 23847), (1323, 15898), (2646, 7949)]