90617289

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227111}}^1$

素因数の和:227140

約数の個数: 16

約数和(自身を含む): 145351680

約数和(自身を除く): 54734391

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 227111, 681333, 1589777, 4315109, 4769331, 12945327, 30205763, 90617289]

約数ペア:

[(1, 90617289), (3, 30205763), (7, 12945327), (19, 4769331), (21, 4315109), (57, 1589777), (133, 681333), (399, 227111)]