28554201

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:185

約数の個数: 56

約数和(自身を含む): 48476736

約数和(自身を除く): 19922535

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 131, 207, 243, 299, 351, 393, 621, 729, 897, 1053, 1179, 1703, 1863, 2691, 3013, 3159, 3537, 5109, 5589, 8073, 9039, 9477, 10611, 15327, 16767, 24219, 27117, 31833, 39169, 45981, 72657, 81351, 95499, 117507, 137943, 217971, 244053, 352521, 413829, 732159, 1057563, 1241487, 2196477, 3172689, 9518067, 28554201]

約数ペア:

[(1, 28554201), (3, 9518067), (9, 3172689), (13, 2196477), (23, 1241487), (27, 1057563), (39, 732159), (69, 413829), (81, 352521), (117, 244053), (131, 217971), (207, 137943), (243, 117507), (299, 95499), (351, 81351), (393, 72657), (621, 45981), (729, 39169), (897, 31833), (1053, 27117), (1179, 24219), (1703, 16767), (1863, 15327), (2691, 10611), (3013, 9477), (3159, 9039), (3537, 8073), (5109, 5589)]