81563937

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2741}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 135125760

約数和(自身を除く): 53561823

約数列:

[1, 3, 7, 13, 21, 39, 91, 109, 273, 327, 763, 1417, 2289, 2741, 4251, 8223, 9919, 19187, 29757, 35633, 57561, 106899, 249431, 298769, 748293, 896307, 2091383, 3883997, 6274149, 11651991, 27187979, 81563937]

約数ペア:

[(1, 81563937), (3, 27187979), (7, 11651991), (13, 6274149), (21, 3883997), (39, 2091383), (91, 896307), (109, 748293), (273, 298769), (327, 249431), (763, 106899), (1417, 57561), (2289, 35633), (2741, 29757), (4251, 19187), (8223, 9919)]