217318928

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{438143}}^1$

素因数の和:438182

約数の個数: 20

約数和(自身を含む): 434638848

約数和(自身を除く): 217319920

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 438143, 876286, 1752572, 3505144, 7010288, 13582433, 27164866, 54329732, 108659464, 217318928]

約数ペア:

[(1, 217318928), (2, 108659464), (4, 54329732), (8, 27164866), (16, 13582433), (31, 7010288), (62, 3505144), (124, 1752572), (248, 876286), (496, 438143)]