21180216

素因数分解:

$2^3\times 3^1\times {\mathrm{79}}^1\times {\mathrm{11171}}^1$

素因数の和:11259

約数の個数: 32

約数和(自身を含む): 53625600

約数和(自身を除く): 32445384

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 79, 158, 237, 316, 474, 632, 948, 1896, 11171, 22342, 33513, 44684, 67026, 89368, 134052, 268104, 882509, 1765018, 2647527, 3530036, 5295054, 7060072, 10590108, 21180216]

約数ペア:

[(1, 21180216), (2, 10590108), (3, 7060072), (4, 5295054), (6, 3530036), (8, 2647527), (12, 1765018), (24, 882509), (79, 268104), (158, 134052), (237, 89368), (316, 67026), (474, 44684), (632, 33513), (948, 22342), (1896, 11171)]