81780237

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6211}}^1$

素因数の和:6254

約数の個数: 48

約数和(自身を含む): 155051520

約数和(自身を除く): 73271283

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1881, 4389, 6211, 13167, 18633, 43477, 55899, 68321, 118009, 130431, 204963, 354027, 391293, 478247, 614889, 826063, 1062081, 1298099, 1434741, 2478189, 3894297, 4304223, 7434567, 9086693, 11682891, 27260079, 81780237]

約数ペア:

[(1, 81780237), (3, 27260079), (7, 11682891), (9, 9086693), (11, 7434567), (19, 4304223), (21, 3894297), (33, 2478189), (57, 1434741), (63, 1298099), (77, 1062081), (99, 826063), (133, 614889), (171, 478247), (209, 391293), (231, 354027), (399, 204963), (627, 130431), (693, 118009), (1197, 68321), (1463, 55899), (1881, 43477), (4389, 18633), (6211, 13167)]