261796269

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1399}}^1$

素因数の和:1502

約数の個数: 48

約数和(自身を含む): 434112000

約数和(自身を除く): 172315731

約数列:

[1, 3, 7, 19, 21, 49, 57, 67, 133, 147, 201, 399, 469, 931, 1273, 1399, 1407, 2793, 3283, 3819, 4197, 8911, 9793, 9849, 26581, 26733, 29379, 62377, 68551, 79743, 93733, 186067, 187131, 205653, 281199, 558201, 656131, 1302469, 1780927, 1968393, 3907407, 4592917, 5342781, 12466489, 13778751, 37399467, 87265423, 261796269]

約数ペア:

[(1, 261796269), (3, 87265423), (7, 37399467), (19, 13778751), (21, 12466489), (49, 5342781), (57, 4592917), (67, 3907407), (133, 1968393), (147, 1780927), (201, 1302469), (399, 656131), (469, 558201), (931, 281199), (1273, 205653), (1399, 187131), (1407, 186067), (2793, 93733), (3283, 79743), (3819, 68551), (4197, 62377), (8911, 29379), (9793, 26733), (9849, 26581)]