28555917

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 43747200

約数和(自身を除く): 15191283

約数列:

[1, 3, 13, 19, 39, 57, 89, 247, 267, 433, 741, 1157, 1299, 1691, 3471, 5073, 5629, 8227, 16887, 21983, 24681, 38537, 65949, 106951, 115611, 320853, 500981, 732203, 1502943, 2196609, 9518639, 28555917]

約数ペア:

[(1, 28555917), (3, 9518639), (13, 2196609), (19, 1502943), (39, 732203), (57, 500981), (89, 320853), (247, 115611), (267, 106951), (433, 65949), (741, 38537), (1157, 24681), (1299, 21983), (1691, 16887), (3471, 8227), (5073, 5629)]