21281148

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{84449}}^1$

素因数の和:84466

約数の個数: 36

約数和(自身を含む): 61479600

約数和(自身を除く): 40198452

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 84449, 168898, 253347, 337796, 506694, 591143, 760041, 1013388, 1182286, 1520082, 1773429, 2364572, 3040164, 3546858, 5320287, 7093716, 10640574, 21281148]

約数ペア:

[(1, 21281148), (2, 10640574), (3, 7093716), (4, 5320287), (6, 3546858), (7, 3040164), (9, 2364572), (12, 1773429), (14, 1520082), (18, 1182286), (21, 1013388), (28, 760041), (36, 591143), (42, 506694), (63, 337796), (84, 253347), (126, 168898), (252, 84449)]