21998067

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4241}}^1$

素因数の和:4283

約数の個数: 32

約数和(自身を含む): 38008320

約数和(自身を除く): 16010253

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 4241, 5187, 12723, 29687, 55133, 80579, 89061, 165399, 241737, 385931, 564053, 1047527, 1157793, 1692159, 3142581, 7332689, 21998067]

約数ペア:

[(1, 21998067), (3, 7332689), (7, 3142581), (13, 1692159), (19, 1157793), (21, 1047527), (39, 564053), (57, 385931), (91, 241737), (133, 165399), (247, 89061), (273, 80579), (399, 55133), (741, 29687), (1729, 12723), (4241, 5187)]