21020568

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{51521}}^1$

素因数の和:51547

約数の個数: 32

約数和(自身を含む): 55643760

約数和(自身を除く): 34623192

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 51521, 103042, 154563, 206084, 309126, 412168, 618252, 875857, 1236504, 1751714, 2627571, 3503428, 5255142, 7006856, 10510284, 21020568]

約数ペア:

[(1, 21020568), (2, 10510284), (3, 7006856), (4, 5255142), (6, 3503428), (8, 2627571), (12, 1751714), (17, 1236504), (24, 875857), (34, 618252), (51, 412168), (68, 309126), (102, 206084), (136, 154563), (204, 103042), (408, 51521)]