30781521

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4019}}^1$

素因数の和:4085

約数の個数: 24

約数和(自身を含む): 47661120

約数和(自身を除く): 16879599

約数列:

[1, 3, 9, 23, 37, 69, 111, 207, 333, 851, 2553, 4019, 7659, 12057, 36171, 92437, 148703, 277311, 446109, 831933, 1338327, 3420169, 10260507, 30781521]

約数ペア:

[(1, 30781521), (3, 10260507), (9, 3420169), (23, 1338327), (37, 831933), (69, 446109), (111, 277311), (207, 148703), (333, 92437), (851, 36171), (2553, 12057), (4019, 7659)]