270921

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:133

約数の個数: 24

約数和(自身を含む): 446880

約数和(自身を除く): 175959

約数列:

[1, 3, 7, 19, 21, 49, 57, 97, 133, 147, 291, 399, 679, 931, 1843, 2037, 2793, 4753, 5529, 12901, 14259, 38703, 90307, 270921]

約数ペア:

[(1, 270921), (3, 90307), (7, 38703), (19, 14259), (21, 12901), (49, 5529), (57, 4753), (97, 2793), (133, 2037), (147, 1843), (291, 931), (399, 679)]