21009592

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2063}}^1$

素因数の和:2155

約数の個数: 32

約数和(自身を含む): 42105600

約数和(自身を除く): 21096008

約数列:

[1, 2, 4, 8, 19, 38, 67, 76, 134, 152, 268, 536, 1273, 2063, 2546, 4126, 5092, 8252, 10184, 16504, 39197, 78394, 138221, 156788, 276442, 313576, 552884, 1105768, 2626199, 5252398, 10504796, 21009592]

約数ペア:

[(1, 21009592), (2, 10504796), (4, 5252398), (8, 2626199), (19, 1105768), (38, 552884), (67, 313576), (76, 276442), (134, 156788), (152, 138221), (268, 78394), (536, 39197), (1273, 16504), (2063, 10184), (2546, 8252), (4126, 5092)]