21079272

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{13109}}^1$

素因数の和:13185

約数の個数: 32

約数和(自身を含む): 53488800

約数和(自身を除く): 32409528

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608, 13109, 26218, 39327, 52436, 78654, 104872, 157308, 314616, 878303, 1756606, 2634909, 3513212, 5269818, 7026424, 10539636, 21079272]

約数ペア:

[(1, 21079272), (2, 10539636), (3, 7026424), (4, 5269818), (6, 3513212), (8, 2634909), (12, 1756606), (24, 878303), (67, 314616), (134, 157308), (201, 104872), (268, 78654), (402, 52436), (536, 39327), (804, 26218), (1608, 13109)]