258443073

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{215909}}^1$

素因数の和:215941

約数の個数: 24

約数和(自身を含む): 449092800

約数和(自身を除く): 190649727

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 215909, 647727, 1511363, 1943181, 4102271, 4534089, 12306813, 13602267, 28715897, 36920439, 86147691, 258443073]

約数ペア:

[(1, 258443073), (3, 86147691), (7, 36920439), (9, 28715897), (19, 13602267), (21, 12306813), (57, 4534089), (63, 4102271), (133, 1943181), (171, 1511363), (399, 647727), (1197, 215909)]