28163499

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1453}}^1$

素因数の和:1547

約数の個数: 32

約数和(自身を含む): 46900224

約数和(自身を除く): 18736725

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1453, 1491, 2769, 4359, 6461, 10171, 18889, 19383, 30513, 56667, 103163, 132223, 309489, 396669, 722141, 1341119, 2166423, 4023357, 9387833, 28163499]

約数ペア:

[(1, 28163499), (3, 9387833), (7, 4023357), (13, 2166423), (21, 1341119), (39, 722141), (71, 396669), (91, 309489), (213, 132223), (273, 103163), (497, 56667), (923, 30513), (1453, 19383), (1491, 18889), (2769, 10171), (4359, 6461)]