31198689

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 50006880

約数和(自身を除く): 18808191

約数列:

[1, 3, 9, 17, 27, 51, 81, 139, 153, 163, 417, 459, 489, 1251, 1377, 1467, 2363, 2771, 3753, 4401, 7089, 8313, 11259, 13203, 21267, 22657, 24939, 63801, 67971, 74817, 191403, 203913, 224451, 385169, 611739, 1155507, 1835217, 3466521, 10399563, 31198689]

約数ペア:

[(1, 31198689), (3, 10399563), (9, 3466521), (17, 1835217), (27, 1155507), (51, 611739), (81, 385169), (139, 224451), (153, 203913), (163, 191403), (417, 74817), (459, 67971), (489, 63801), (1251, 24939), (1377, 22657), (1467, 21267), (2363, 13203), (2771, 11259), (3753, 8313), (4401, 7089)]